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Finding the Fourth Proportional to 15,057.76, 22,586.64 and 6,287.90

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Solution

The fourth proportional to 15,057.76, 22,586.64 and 6,287.90 is: 9,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.76 : 22,586.64 = 6,287.90 : x
  2. Step 2: Convert to fraction form
    15,057.76/22,586.64 = 6,287.90/x
  3. Step 3: Cross multiply
    15,057.76x = 22,586.64 × 6,287.90
  4. Step 4: Simplify right side
    15,057.76x = 142,022,533.66
  5. Step 5: Solve for x
    x = 142,022,533.66/15,057.76
  6. Step 6: Final answer
    x = 9,431.85

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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.