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Finding the Fourth Proportional to 65,091.66, 89,827.14 and 38,242.80

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Solution

The fourth proportional to 65,091.66, 89,827.14 and 38,242.80 is: 52,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,091.66 : 89,827.14 = 38,242.80 : x
  2. Step 2: Convert to fraction form
    65,091.66/89,827.14 = 38,242.80/x
  3. Step 3: Cross multiply
    65,091.66x = 89,827.14 × 38,242.80
  4. Step 4: Simplify right side
    65,091.66x = 3,435,241,349.59
  5. Step 5: Solve for x
    x = 3,435,241,349.59/65,091.66
  6. Step 6: Final answer
    x = 52,775.45

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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.