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Finding the Fourth Proportional to 60,777.66, 83,870.96 and 38,128.84

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Solution

The fourth proportional to 60,777.66, 83,870.96 and 38,128.84 is: 52,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,777.66 : 83,870.96 = 38,128.84 : x
  2. Step 2: Convert to fraction form
    60,777.66/83,870.96 = 38,128.84/x
  3. Step 3: Cross multiply
    60,777.66x = 83,870.96 × 38,128.84
  4. Step 4: Simplify right side
    60,777.66x = 3,197,902,414.49
  5. Step 5: Solve for x
    x = 3,197,902,414.49/60,777.66
  6. Step 6: Final answer
    x = 52,616.41

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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.