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Finding the Fourth Proportional to 45,752.61, 63,129.63 and 28,747.01

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Solution

The fourth proportional to 45,752.61, 63,129.63 and 28,747.01 is: 39,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,752.61 : 63,129.63 = 28,747.01 : x
  2. Step 2: Convert to fraction form
    45,752.61/63,129.63 = 28,747.01/x
  3. Step 3: Cross multiply
    45,752.61x = 63,129.63 × 28,747.01
  4. Step 4: Simplify right side
    45,752.61x = 1,814,787,789.26
  5. Step 5: Solve for x
    x = 1,814,787,789.26/45,752.61
  6. Step 6: Final answer
    x = 39,665.23

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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.