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Finding the Fourth Proportional to 47,605.52, 71,426.03 and 25,406.55

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Solution

The fourth proportional to 47,605.52, 71,426.03 and 25,406.55 is: 38,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,605.52 : 71,426.03 = 25,406.55 : x
  2. Step 2: Convert to fraction form
    47,605.52/71,426.03 = 25,406.55/x
  3. Step 3: Cross multiply
    47,605.52x = 71,426.03 × 25,406.55
  4. Step 4: Simplify right side
    47,605.52x = 1,814,688,875.46
  5. Step 5: Solve for x
    x = 1,814,688,875.46/47,605.52
  6. Step 6: Final answer
    x = 38,119.30

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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.