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Finding the Fourth Proportional to 14,437.10, 19,921.76 and 8,062.68

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Solution

The fourth proportional to 14,437.10, 19,921.76 and 8,062.68 is: 11,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.10 : 19,921.76 = 8,062.68 : x
  2. Step 2: Convert to fraction form
    14,437.10/19,921.76 = 8,062.68/x
  3. Step 3: Cross multiply
    14,437.10x = 19,921.76 × 8,062.68
  4. Step 4: Simplify right side
    14,437.10x = 160,622,775.92
  5. Step 5: Solve for x
    x = 160,622,775.92/14,437.10
  6. Step 6: Final answer
    x = 11,125.70

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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.