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Finding the Fourth Proportional to 64,893.60, 89,572.32 and 38,041.92

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Solution

The fourth proportional to 64,893.60, 89,572.32 and 38,041.92 is: 52,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,893.60 : 89,572.32 = 38,041.92 : x
  2. Step 2: Convert to fraction form
    64,893.60/89,572.32 = 38,041.92/x
  3. Step 3: Cross multiply
    64,893.60x = 89,572.32 × 38,041.92
  4. Step 4: Simplify right side
    64,893.60x = 3,407,503,031.65
  5. Step 5: Solve for x
    x = 3,407,503,031.65/64,893.60
  6. Step 6: Final answer
    x = 52,509.08

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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.