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Finding the Fourth Proportional to 44,870.64, 67,280.84 and 20,829.30

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Solution

The fourth proportional to 44,870.64, 67,280.84 and 20,829.30 is: 31,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,870.64 : 67,280.84 = 20,829.30 : x
  2. Step 2: Convert to fraction form
    44,870.64/67,280.84 = 20,829.30/x
  3. Step 3: Cross multiply
    44,870.64x = 67,280.84 × 20,829.30
  4. Step 4: Simplify right side
    44,870.64x = 1,401,412,800.61
  5. Step 5: Solve for x
    x = 1,401,412,800.61/44,870.64
  6. Step 6: Final answer
    x = 31,232.29

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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.