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Finding the Fourth Proportional to 62,642.43, 93,619.65 and 45,810.90

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Solution

The fourth proportional to 62,642.43, 93,619.65 and 45,810.90 is: 68,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,642.43 : 93,619.65 = 45,810.90 : x
  2. Step 2: Convert to fraction form
    62,642.43/93,619.65 = 45,810.90/x
  3. Step 3: Cross multiply
    62,642.43x = 93,619.65 × 45,810.90
  4. Step 4: Simplify right side
    62,642.43x = 4,288,800,424.19
  5. Step 5: Solve for x
    x = 4,288,800,424.19/62,642.43
  6. Step 6: Final answer
    x = 68,464.78

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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.