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Finding the Fourth Proportional to 64,543.52, 89,070.08 and 36,248.48

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Solution

The fourth proportional to 64,543.52, 89,070.08 and 36,248.48 is: 50,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,543.52 : 89,070.08 = 36,248.48 : x
  2. Step 2: Convert to fraction form
    64,543.52/89,070.08 = 36,248.48/x
  3. Step 3: Cross multiply
    64,543.52x = 89,070.08 × 36,248.48
  4. Step 4: Simplify right side
    64,543.52x = 3,228,655,013.48
  5. Step 5: Solve for x
    x = 3,228,655,013.48/64,543.52
  6. Step 6: Final answer
    x = 50,022.91

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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.