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Finding the Fourth Proportional to 32,439.84, 44,737.12 and 20,482.40

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Solution

The fourth proportional to 32,439.84, 44,737.12 and 20,482.40 is: 28,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,439.84 : 44,737.12 = 20,482.40 : x
  2. Step 2: Convert to fraction form
    32,439.84/44,737.12 = 20,482.40/x
  3. Step 3: Cross multiply
    32,439.84x = 44,737.12 × 20,482.40
  4. Step 4: Simplify right side
    32,439.84x = 916,323,586.69
  5. Step 5: Solve for x
    x = 916,323,586.69/32,439.84
  6. Step 6: Final answer
    x = 28,246.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.