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Finding the Fourth Proportional to 71,641.76, 98,874.72 and 43,347.68

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Solution

The fourth proportional to 71,641.76, 98,874.72 and 43,347.68 is: 59,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,641.76 : 98,874.72 = 43,347.68 : x
  2. Step 2: Convert to fraction form
    71,641.76/98,874.72 = 43,347.68/x
  3. Step 3: Cross multiply
    71,641.76x = 98,874.72 × 43,347.68
  4. Step 4: Simplify right side
    71,641.76x = 4,285,989,722.65
  5. Step 5: Solve for x
    x = 4,285,989,722.65/71,641.76
  6. Step 6: Final answer
    x = 59,825.30

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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.