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Finding the Fourth Proportional to 67,805.64, 93,552.48 and 39,505.86

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Solution

The fourth proportional to 67,805.64, 93,552.48 and 39,505.86 is: 54,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,805.64 : 93,552.48 = 39,505.86 : x
  2. Step 2: Convert to fraction form
    67,805.64/93,552.48 = 39,505.86/x
  3. Step 3: Cross multiply
    67,805.64x = 93,552.48 × 39,505.86
  4. Step 4: Simplify right side
    67,805.64x = 3,695,871,177.53
  5. Step 5: Solve for x
    x = 3,695,871,177.53/67,805.64
  6. Step 6: Final answer
    x = 54,506.84

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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.