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Finding the Fourth Proportional to 12,210.02, 18,315.02 and 4,417

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Solution

The fourth proportional to 12,210.02, 18,315.02 and 4,417 is: 6,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.02 : 18,315.02 = 4,417 : x
  2. Step 2: Convert to fraction form
    12,210.02/18,315.02 = 4,417/x
  3. Step 3: Cross multiply
    12,210.02x = 18,315.02 × 4,417
  4. Step 4: Simplify right side
    12,210.02x = 80,897,443.34
  5. Step 5: Solve for x
    x = 80,897,443.34/12,210.02
  6. Step 6: Final answer
    x = 6,625.50

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Half scale
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Double scale
Find fourth proportional to 12,211.02, 18,316.52 and 4,418
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.