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Finding the Fourth Proportional to 28,592.24, 42,895.04 and 8,869.77

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Solution

The fourth proportional to 28,592.24, 42,895.04 and 8,869.77 is: 13,306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.24 : 42,895.04 = 8,869.77 : x
  2. Step 2: Convert to fraction form
    28,592.24/42,895.04 = 8,869.77/x
  3. Step 3: Cross multiply
    28,592.24x = 42,895.04 × 8,869.77
  4. Step 4: Simplify right side
    28,592.24x = 380,469,094.59
  5. Step 5: Solve for x
    x = 380,469,094.59/28,592.24
  6. Step 6: Final answer
    x = 13,306.73

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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.