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Finding the Fourth Proportional to 29,134.20, 43,712.10 and 28,054.20

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Solution

The fourth proportional to 29,134.20, 43,712.10 and 28,054.20 is: 42,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,134.20 : 43,712.10 = 28,054.20 : x
  2. Step 2: Convert to fraction form
    29,134.20/43,712.10 = 28,054.20/x
  3. Step 3: Cross multiply
    29,134.20x = 43,712.10 × 28,054.20
  4. Step 4: Simplify right side
    29,134.20x = 1,226,307,995.82
  5. Step 5: Solve for x
    x = 1,226,307,995.82/29,134.20
  6. Step 6: Final answer
    x = 42,091.70

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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.