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Finding the Fourth Proportional to 15,183.66, 20,952 and 8,468.76

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Solution

The fourth proportional to 15,183.66, 20,952 and 8,468.76 is: 11,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.66 : 20,952 = 8,468.76 : x
  2. Step 2: Convert to fraction form
    15,183.66/20,952 = 8,468.76/x
  3. Step 3: Cross multiply
    15,183.66x = 20,952 × 8,468.76
  4. Step 4: Simplify right side
    15,183.66x = 177,437,459.52
  5. Step 5: Solve for x
    x = 177,437,459.52/15,183.66
  6. Step 6: Final answer
    x = 11,686.08

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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.