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Finding the Fourth Proportional to 25,957.52, 38,923.95 and 13,465.03

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Solution

The fourth proportional to 25,957.52, 38,923.95 and 13,465.03 is: 20,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.52 : 38,923.95 = 13,465.03 : x
  2. Step 2: Convert to fraction form
    25,957.52/38,923.95 = 13,465.03/x
  3. Step 3: Cross multiply
    25,957.52x = 38,923.95 × 13,465.03
  4. Step 4: Simplify right side
    25,957.52x = 524,112,154.47
  5. Step 5: Solve for x
    x = 524,112,154.47/25,957.52
  6. Step 6: Final answer
    x = 20,191.15

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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.