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Finding the Fourth Proportional to 32,691.60, 49,037.40 and 11,912.40

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Solution

The fourth proportional to 32,691.60, 49,037.40 and 11,912.40 is: 17,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,691.60 : 49,037.40 = 11,912.40 : x
  2. Step 2: Convert to fraction form
    32,691.60/49,037.40 = 11,912.40/x
  3. Step 3: Cross multiply
    32,691.60x = 49,037.40 × 11,912.40
  4. Step 4: Simplify right side
    32,691.60x = 584,153,123.76
  5. Step 5: Solve for x
    x = 584,153,123.76/32,691.60
  6. Step 6: Final answer
    x = 17,868.60

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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.