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Finding the Fourth Proportional to 25,160.01, 37,690.80 and 20,724.04

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Solution

The fourth proportional to 25,160.01, 37,690.80 and 20,724.04 is: 31,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160.01 : 37,690.80 = 20,724.04 : x
  2. Step 2: Convert to fraction form
    25,160.01/37,690.80 = 20,724.04/x
  3. Step 3: Cross multiply
    25,160.01x = 37,690.80 × 20,724.04
  4. Step 4: Simplify right side
    25,160.01x = 781,105,646.83
  5. Step 5: Solve for x
    x = 781,105,646.83/25,160.01
  6. Step 6: Final answer
    x = 31,045.52

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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.