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Finding the Fourth Proportional to 58,446.40, 87,618.30 and 34,695.40

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Solution

The fourth proportional to 58,446.40, 87,618.30 and 34,695.40 is: 52,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,446.40 : 87,618.30 = 34,695.40 : x
  2. Step 2: Convert to fraction form
    58,446.40/87,618.30 = 34,695.40/x
  3. Step 3: Cross multiply
    58,446.40x = 87,618.30 × 34,695.40
  4. Step 4: Simplify right side
    58,446.40x = 3,039,951,965.82
  5. Step 5: Solve for x
    x = 3,039,951,965.82/58,446.40
  6. Step 6: Final answer
    x = 52,012.65

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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.