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Finding the Fourth Proportional to 29,203.76, 43,807.08 and 8,143.76

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Solution

The fourth proportional to 29,203.76, 43,807.08 and 8,143.76 is: 12,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,203.76 : 43,807.08 = 8,143.76 : x
  2. Step 2: Convert to fraction form
    29,203.76/43,807.08 = 8,143.76/x
  3. Step 3: Cross multiply
    29,203.76x = 43,807.08 × 8,143.76
  4. Step 4: Simplify right side
    29,203.76x = 356,754,345.82
  5. Step 5: Solve for x
    x = 356,754,345.82/29,203.76
  6. Step 6: Final answer
    x = 12,216.04

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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.