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Finding the Fourth Proportional to 67,730.80, 101,612.40 and 32,641.60

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Solution

The fourth proportional to 67,730.80, 101,612.40 and 32,641.60 is: 48,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,730.80 : 101,612.40 = 32,641.60 : x
  2. Step 2: Convert to fraction form
    67,730.80/101,612.40 = 32,641.60/x
  3. Step 3: Cross multiply
    67,730.80x = 101,612.40 × 32,641.60
  4. Step 4: Simplify right side
    67,730.80x = 3,316,791,315.84
  5. Step 5: Solve for x
    x = 3,316,791,315.84/67,730.80
  6. Step 6: Final answer
    x = 48,970.21

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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.