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Finding the Fourth Proportional to 64,687.01, 89,267.06 and 36,392.76

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Solution

The fourth proportional to 64,687.01, 89,267.06 and 36,392.76 is: 50,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.01 : 89,267.06 = 36,392.76 : x
  2. Step 2: Convert to fraction form
    64,687.01/89,267.06 = 36,392.76/x
  3. Step 3: Cross multiply
    64,687.01x = 89,267.06 × 36,392.76
  4. Step 4: Simplify right side
    64,687.01x = 3,248,674,781.47
  5. Step 5: Solve for x
    x = 3,248,674,781.47/64,687.01
  6. Step 6: Final answer
    x = 50,221.44

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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.