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Finding the Fourth Proportional to 83,647.64, 125,452.32 and 49,923.18

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Solution

The fourth proportional to 83,647.64, 125,452.32 and 49,923.18 is: 74,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,647.64 : 125,452.32 = 49,923.18 : x
  2. Step 2: Convert to fraction form
    83,647.64/125,452.32 = 49,923.18/x
  3. Step 3: Cross multiply
    83,647.64x = 125,452.32 × 49,923.18
  4. Step 4: Simplify right side
    83,647.64x = 6,262,978,752.78
  5. Step 5: Solve for x
    x = 6,262,978,752.78/83,647.64
  6. Step 6: Final answer
    x = 74,873.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.