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Finding the Fourth Proportional to 44,942.40, 67,510.80 and 31,820.40

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Solution

The fourth proportional to 44,942.40, 67,510.80 and 31,820.40 is: 47,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,942.40 : 67,510.80 = 31,820.40 : x
  2. Step 2: Convert to fraction form
    44,942.40/67,510.80 = 31,820.40/x
  3. Step 3: Cross multiply
    44,942.40x = 67,510.80 × 31,820.40
  4. Step 4: Simplify right side
    44,942.40x = 2,148,220,660.32
  5. Step 5: Solve for x
    x = 2,148,220,660.32/44,942.40
  6. Step 6: Final answer
    x = 47,799.42

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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.