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Finding the Fourth Proportional to 64,876.32, 89,447.44 and 52,927.52

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Solution

The fourth proportional to 64,876.32, 89,447.44 and 52,927.52 is: 72,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,876.32 : 89,447.44 = 52,927.52 : x
  2. Step 2: Convert to fraction form
    64,876.32/89,447.44 = 52,927.52/x
  3. Step 3: Cross multiply
    64,876.32x = 89,447.44 × 52,927.52
  4. Step 4: Simplify right side
    64,876.32x = 4,734,231,169.55
  5. Step 5: Solve for x
    x = 4,734,231,169.55/64,876.32
  6. Step 6: Final answer
    x = 72,973.18

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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.