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Finding the Fourth Proportional to 48,894.20, 73,487.10 and 48,019.40

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Solution

The fourth proportional to 48,894.20, 73,487.10 and 48,019.40 is: 72,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,894.20 : 73,487.10 = 48,019.40 : x
  2. Step 2: Convert to fraction form
    48,894.20/73,487.10 = 48,019.40/x
  3. Step 3: Cross multiply
    48,894.20x = 73,487.10 × 48,019.40
  4. Step 4: Simplify right side
    48,894.20x = 3,528,806,449.74
  5. Step 5: Solve for x
    x = 3,528,806,449.74/48,894.20
  6. Step 6: Final answer
    x = 72,172.29

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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.