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Finding the Fourth Proportional to 32,740.80, 49,038.30 and 28,366.80

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Solution

The fourth proportional to 32,740.80, 49,038.30 and 28,366.80 is: 42,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,740.80 : 49,038.30 = 28,366.80 : x
  2. Step 2: Convert to fraction form
    32,740.80/49,038.30 = 28,366.80/x
  3. Step 3: Cross multiply
    32,740.80x = 49,038.30 × 28,366.80
  4. Step 4: Simplify right side
    32,740.80x = 1,391,059,648.44
  5. Step 5: Solve for x
    x = 1,391,059,648.44/32,740.80
  6. Step 6: Final answer
    x = 42,487.04

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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.