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Finding the Fourth Proportional to 60,641.80, 83,688 and 35,149

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Solution

The fourth proportional to 60,641.80, 83,688 and 35,149 is: 48,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,641.80 : 83,688 = 35,149 : x
  2. Step 2: Convert to fraction form
    60,641.80/83,688 = 35,149/x
  3. Step 3: Cross multiply
    60,641.80x = 83,688 × 35,149
  4. Step 4: Simplify right side
    60,641.80x = 2,941,549,512
  5. Step 5: Solve for x
    x = 2,941,549,512/60,641.80
  6. Step 6: Final answer
    x = 48,506.96

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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.