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Finding the Fourth Proportional to 24,781.68, 34,199.28 and 13,603.68

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Solution

The fourth proportional to 24,781.68, 34,199.28 and 13,603.68 is: 18,773.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,781.68 : 34,199.28 = 13,603.68 : x
  2. Step 2: Convert to fraction form
    24,781.68/34,199.28 = 13,603.68/x
  3. Step 3: Cross multiply
    24,781.68x = 34,199.28 × 13,603.68
  4. Step 4: Simplify right side
    24,781.68x = 465,236,061.35
  5. Step 5: Solve for x
    x = 465,236,061.35/24,781.68
  6. Step 6: Final answer
    x = 18,773.39

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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.