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Finding the Fourth Proportional to 56,573.80, 78,063.18 and 32,695.87

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Solution

The fourth proportional to 56,573.80, 78,063.18 and 32,695.87 is: 45,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,573.80 : 78,063.18 = 32,695.87 : x
  2. Step 2: Convert to fraction form
    56,573.80/78,063.18 = 32,695.87/x
  3. Step 3: Cross multiply
    56,573.80x = 78,063.18 × 32,695.87
  4. Step 4: Simplify right side
    56,573.80x = 2,552,343,421.59
  5. Step 5: Solve for x
    x = 2,552,343,421.59/56,573.80
  6. Step 6: Final answer
    x = 45,115.29

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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.