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Finding the Fourth Proportional to 64,575.90, 89,123.04 and 36,281.52

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Solution

The fourth proportional to 64,575.90, 89,123.04 and 36,281.52 is: 50,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.90 : 89,123.04 = 36,281.52 : x
  2. Step 2: Convert to fraction form
    64,575.90/89,123.04 = 36,281.52/x
  3. Step 3: Cross multiply
    64,575.90x = 89,123.04 × 36,281.52
  4. Step 4: Simplify right side
    64,575.90x = 3,233,519,358.22
  5. Step 5: Solve for x
    x = 3,233,519,358.22/64,575.90
  6. Step 6: Final answer
    x = 50,073.16

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1.5x scale

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.