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Finding the Fourth Proportional to 58,012.56, 87,048.18 and 26,869.68

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Solution

The fourth proportional to 58,012.56, 87,048.18 and 26,869.68 is: 40,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,012.56 : 87,048.18 = 26,869.68 : x
  2. Step 2: Convert to fraction form
    58,012.56/87,048.18 = 26,869.68/x
  3. Step 3: Cross multiply
    58,012.56x = 87,048.18 × 26,869.68
  4. Step 4: Simplify right side
    58,012.56x = 2,338,956,741.18
  5. Step 5: Solve for x
    x = 2,338,956,741.18/58,012.56
  6. Step 6: Final answer
    x = 40,318.11

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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.