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Finding the Fourth Proportional to 60,191.81, 83,037.13 and 38,977.91

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Solution

The fourth proportional to 60,191.81, 83,037.13 and 38,977.91 is: 53,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,191.81 : 83,037.13 = 38,977.91 : x
  2. Step 2: Convert to fraction form
    60,191.81/83,037.13 = 38,977.91/x
  3. Step 3: Cross multiply
    60,191.81x = 83,037.13 × 38,977.91
  4. Step 4: Simplify right side
    60,191.81x = 3,236,613,364.61
  5. Step 5: Solve for x
    x = 3,236,613,364.61/60,191.81
  6. Step 6: Final answer
    x = 53,771.66

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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.