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Finding the Fourth Proportional to 67,019.28, 92,494 and 38,341.60

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Solution

The fourth proportional to 67,019.28, 92,494 and 38,341.60 is: 52,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,019.28 : 92,494 = 38,341.60 : x
  2. Step 2: Convert to fraction form
    67,019.28/92,494 = 38,341.60/x
  3. Step 3: Cross multiply
    67,019.28x = 92,494 × 38,341.60
  4. Step 4: Simplify right side
    67,019.28x = 3,546,367,950.40
  5. Step 5: Solve for x
    x = 3,546,367,950.40/67,019.28
  6. Step 6: Final answer
    x = 52,915.64

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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.