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Finding the Fourth Proportional to 25,098.16, 34,637.04 and 13,920.16

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Solution

The fourth proportional to 25,098.16, 34,637.04 and 13,920.16 is: 19,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,098.16 : 34,637.04 = 13,920.16 : x
  2. Step 2: Convert to fraction form
    25,098.16/34,637.04 = 13,920.16/x
  3. Step 3: Cross multiply
    25,098.16x = 34,637.04 × 13,920.16
  4. Step 4: Simplify right side
    25,098.16x = 482,153,138.73
  5. Step 5: Solve for x
    x = 482,153,138.73/25,098.16
  6. Step 6: Final answer
    x = 19,210.70

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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.