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Finding the Fourth Proportional to 11,074.68, 15,302.50 and 8,854.88

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Solution

The fourth proportional to 11,074.68, 15,302.50 and 8,854.88 is: 12,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074.68 : 15,302.50 = 8,854.88 : x
  2. Step 2: Convert to fraction form
    11,074.68/15,302.50 = 8,854.88/x
  3. Step 3: Cross multiply
    11,074.68x = 15,302.50 × 8,854.88
  4. Step 4: Simplify right side
    11,074.68x = 135,501,801.20
  5. Step 5: Solve for x
    x = 135,501,801.20/11,074.68
  6. Step 6: Final answer
    x = 12,235.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.