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Finding the Fourth Proportional to 72,433.40, 108,617.70 and 32,970.20

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Solution

The fourth proportional to 72,433.40, 108,617.70 and 32,970.20 is: 49,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.40 : 108,617.70 = 32,970.20 : x
  2. Step 2: Convert to fraction form
    72,433.40/108,617.70 = 32,970.20/x
  3. Step 3: Cross multiply
    72,433.40x = 108,617.70 × 32,970.20
  4. Step 4: Simplify right side
    72,433.40x = 3,581,147,292.54
  5. Step 5: Solve for x
    x = 3,581,147,292.54/72,433.40
  6. Step 6: Final answer
    x = 49,440.55

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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.