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Finding the Fourth Proportional to 58,062.67, 87,132.84 and 21,126.67

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Solution

The fourth proportional to 58,062.67, 87,132.84 and 21,126.67 is: 31,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,062.67 : 87,132.84 = 21,126.67 : x
  2. Step 2: Convert to fraction form
    58,062.67/87,132.84 = 21,126.67/x
  3. Step 3: Cross multiply
    58,062.67x = 87,132.84 × 21,126.67
  4. Step 4: Simplify right side
    58,062.67x = 1,840,826,756.84
  5. Step 5: Solve for x
    x = 1,840,826,756.84/58,062.67
  6. Step 6: Final answer
    x = 31,704.14

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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.