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Finding the Fourth Proportional to 15,977.95, 22,049.72 and 8,808.14

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Solution

The fourth proportional to 15,977.95, 22,049.72 and 8,808.14 is: 12,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,977.95 : 22,049.72 = 8,808.14 : x
  2. Step 2: Convert to fraction form
    15,977.95/22,049.72 = 8,808.14/x
  3. Step 3: Cross multiply
    15,977.95x = 22,049.72 × 8,808.14
  4. Step 4: Simplify right side
    15,977.95x = 194,217,020.72
  5. Step 5: Solve for x
    x = 194,217,020.72/15,977.95
  6. Step 6: Final answer
    x = 12,155.32

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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.