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Finding the Fourth Proportional to 29,920.60, 44,880.90 and 20,006.20

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Solution

The fourth proportional to 29,920.60, 44,880.90 and 20,006.20 is: 30,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,920.60 : 44,880.90 = 20,006.20 : x
  2. Step 2: Convert to fraction form
    29,920.60/44,880.90 = 20,006.20/x
  3. Step 3: Cross multiply
    29,920.60x = 44,880.90 × 20,006.20
  4. Step 4: Simplify right side
    29,920.60x = 897,896,261.58
  5. Step 5: Solve for x
    x = 897,896,261.58/29,920.60
  6. Step 6: Final answer
    x = 30,009.30

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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.