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Finding the Fourth Proportional to 77,990.64, 107,627.10 and 44,006.33

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Solution

The fourth proportional to 77,990.64, 107,627.10 and 44,006.33 is: 60,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,990.64 : 107,627.10 = 44,006.33 : x
  2. Step 2: Convert to fraction form
    77,990.64/107,627.10 = 44,006.33/x
  3. Step 3: Cross multiply
    77,990.64x = 107,627.10 × 44,006.33
  4. Step 4: Simplify right side
    77,990.64x = 4,736,273,948.61
  5. Step 5: Solve for x
    x = 4,736,273,948.61/77,990.64
  6. Step 6: Final answer
    x = 60,728.75

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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.