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Finding the Fourth Proportional to 38,672.40, 58,008.60 and 10,970.40

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Solution

The fourth proportional to 38,672.40, 58,008.60 and 10,970.40 is: 16,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.40 : 58,008.60 = 10,970.40 : x
  2. Step 2: Convert to fraction form
    38,672.40/58,008.60 = 10,970.40/x
  3. Step 3: Cross multiply
    38,672.40x = 58,008.60 × 10,970.40
  4. Step 4: Simplify right side
    38,672.40x = 636,377,545.44
  5. Step 5: Solve for x
    x = 636,377,545.44/38,672.40
  6. Step 6: Final answer
    x = 16,455.60

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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.