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Finding the Fourth Proportional to 17,897.40, 24,697.17 and 9,939.15

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Solution

The fourth proportional to 17,897.40, 24,697.17 and 9,939.15 is: 13,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.40 : 24,697.17 = 9,939.15 : x
  2. Step 2: Convert to fraction form
    17,897.40/24,697.17 = 9,939.15/x
  3. Step 3: Cross multiply
    17,897.40x = 24,697.17 × 9,939.15
  4. Step 4: Simplify right side
    17,897.40x = 245,468,877.21
  5. Step 5: Solve for x
    x = 245,468,877.21/17,897.40
  6. Step 6: Final answer
    x = 13,715.34

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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.