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Finding the Fourth Proportional to 64,972.04, 89,633.46 and 38,122.76

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Solution

The fourth proportional to 64,972.04, 89,633.46 and 38,122.76 is: 52,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.04 : 89,633.46 = 38,122.76 : x
  2. Step 2: Convert to fraction form
    64,972.04/89,633.46 = 38,122.76/x
  3. Step 3: Cross multiply
    64,972.04x = 89,633.46 × 38,122.76
  4. Step 4: Simplify right side
    64,972.04x = 3,417,074,883.55
  5. Step 5: Solve for x
    x = 3,417,074,883.55/64,972.04
  6. Step 6: Final answer
    x = 52,593.01

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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.