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Finding the Fourth Proportional to 25,468.16, 38,160.08 and 9,877.28

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Solution

The fourth proportional to 25,468.16, 38,160.08 and 9,877.28 is: 14,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,468.16 : 38,160.08 = 9,877.28 : x
  2. Step 2: Convert to fraction form
    25,468.16/38,160.08 = 9,877.28/x
  3. Step 3: Cross multiply
    25,468.16x = 38,160.08 × 9,877.28
  4. Step 4: Simplify right side
    25,468.16x = 376,917,794.98
  5. Step 5: Solve for x
    x = 376,917,794.98/25,468.16
  6. Step 6: Final answer
    x = 14,799.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.