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Finding the Fourth Proportional to 17,715.90, 24,447.90 and 9,758.14

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Solution

The fourth proportional to 17,715.90, 24,447.90 and 9,758.14 is: 13,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.90 : 24,447.90 = 9,758.14 : x
  2. Step 2: Convert to fraction form
    17,715.90/24,447.90 = 9,758.14/x
  3. Step 3: Cross multiply
    17,715.90x = 24,447.90 × 9,758.14
  4. Step 4: Simplify right side
    17,715.90x = 238,566,030.91
  5. Step 5: Solve for x
    x = 238,566,030.91/17,715.90
  6. Step 6: Final answer
    x = 13,466.21

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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.