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Finding the Fourth Proportional to 23,072.68, 31,609.68 and 22,208.80

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Solution

The fourth proportional to 23,072.68, 31,609.68 and 22,208.80 is: 30,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,072.68 : 31,609.68 = 22,208.80 : x
  2. Step 2: Convert to fraction form
    23,072.68/31,609.68 = 22,208.80/x
  3. Step 3: Cross multiply
    23,072.68x = 31,609.68 × 22,208.80
  4. Step 4: Simplify right side
    23,072.68x = 702,013,061.18
  5. Step 5: Solve for x
    x = 702,013,061.18/23,072.68
  6. Step 6: Final answer
    x = 30,426.16

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Half scale
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Double scale
Find fourth proportional to 23,073.68, 31,611.05 and 22,209.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.