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Finding the Fourth Proportional to 60,778.96, 83,827.08 and 39,564.88

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Solution

The fourth proportional to 60,778.96, 83,827.08 and 39,564.88 is: 54,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,778.96 : 83,827.08 = 39,564.88 : x
  2. Step 2: Convert to fraction form
    60,778.96/83,827.08 = 39,564.88/x
  3. Step 3: Cross multiply
    60,778.96x = 83,827.08 × 39,564.88
  4. Step 4: Simplify right side
    60,778.96x = 3,316,608,360.95
  5. Step 5: Solve for x
    x = 3,316,608,360.95/60,778.96
  6. Step 6: Final answer
    x = 54,568.36

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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.