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Finding the Fourth Proportional to 12,348.87, 18,477.17 and 7,588.04

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Solution

The fourth proportional to 12,348.87, 18,477.17 and 7,588.04 is: 11,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.87 : 18,477.17 = 7,588.04 : x
  2. Step 2: Convert to fraction form
    12,348.87/18,477.17 = 7,588.04/x
  3. Step 3: Cross multiply
    12,348.87x = 18,477.17 × 7,588.04
  4. Step 4: Simplify right side
    12,348.87x = 140,205,570.21
  5. Step 5: Solve for x
    x = 140,205,570.21/12,348.87
  6. Step 6: Final answer
    x = 11,353.72

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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.