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Finding the Fourth Proportional to 56,398.65, 77,824.95 and 32,520.71

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Solution

The fourth proportional to 56,398.65, 77,824.95 and 32,520.71 is: 44,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.65 : 77,824.95 = 32,520.71 : x
  2. Step 2: Convert to fraction form
    56,398.65/77,824.95 = 32,520.71/x
  3. Step 3: Cross multiply
    56,398.65x = 77,824.95 × 32,520.71
  4. Step 4: Simplify right side
    56,398.65x = 2,530,922,629.71
  5. Step 5: Solve for x
    x = 2,530,922,629.71/56,398.65
  6. Step 6: Final answer
    x = 44,875.59

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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.