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Finding the Fourth Proportional to 62,205.68, 85,776.08 and 42,027.52

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Solution

The fourth proportional to 62,205.68, 85,776.08 and 42,027.52 is: 57,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,205.68 : 85,776.08 = 42,027.52 : x
  2. Step 2: Convert to fraction form
    62,205.68/85,776.08 = 42,027.52/x
  3. Step 3: Cross multiply
    62,205.68x = 85,776.08 × 42,027.52
  4. Step 4: Simplify right side
    62,205.68x = 3,604,955,917.72
  5. Step 5: Solve for x
    x = 3,604,955,917.72/62,205.68
  6. Step 6: Final answer
    x = 57,952.20

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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.