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Finding the Fourth Proportional to 45,353.90, 67,687.85 and 44,172.92

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Solution

The fourth proportional to 45,353.90, 67,687.85 and 44,172.92 is: 65,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,353.90 : 67,687.85 = 44,172.92 : x
  2. Step 2: Convert to fraction form
    45,353.90/67,687.85 = 44,172.92/x
  3. Step 3: Cross multiply
    45,353.90x = 67,687.85 × 44,172.92
  4. Step 4: Simplify right side
    45,353.90x = 2,989,969,423.72
  5. Step 5: Solve for x
    x = 2,989,969,423.72/45,353.90
  6. Step 6: Final answer
    x = 65,925.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.