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Finding the Fourth Proportional to 17,897.10, 24,697.85 and 9,939.30

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Solution

The fourth proportional to 17,897.10, 24,697.85 and 9,939.30 is: 13,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.10 : 24,697.85 = 9,939.30 : x
  2. Step 2: Convert to fraction form
    17,897.10/24,697.85 = 9,939.30/x
  3. Step 3: Cross multiply
    17,897.10x = 24,697.85 × 9,939.30
  4. Step 4: Simplify right side
    17,897.10x = 245,479,290.81
  5. Step 5: Solve for x
    x = 245,479,290.81/17,897.10
  6. Step 6: Final answer
    x = 13,716.15

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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.