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Finding the Fourth Proportional to 17,811.68, 24,553.68 and 15,281.60

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Solution

The fourth proportional to 17,811.68, 24,553.68 and 15,281.60 is: 21,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.68 : 24,553.68 = 15,281.60 : x
  2. Step 2: Convert to fraction form
    17,811.68/24,553.68 = 15,281.60/x
  3. Step 3: Cross multiply
    17,811.68x = 24,553.68 × 15,281.60
  4. Step 4: Simplify right side
    17,811.68x = 375,219,516.29
  5. Step 5: Solve for x
    x = 375,219,516.29/17,811.68
  6. Step 6: Final answer
    x = 21,065.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.