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Finding the Fourth Proportional to 58,319.20, 87,430.80 and 25,064.80

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Solution

The fourth proportional to 58,319.20, 87,430.80 and 25,064.80 is: 37,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,319.20 : 87,430.80 = 25,064.80 : x
  2. Step 2: Convert to fraction form
    58,319.20/87,430.80 = 25,064.80/x
  3. Step 3: Cross multiply
    58,319.20x = 87,430.80 × 25,064.80
  4. Step 4: Simplify right side
    58,319.20x = 2,191,435,515.84
  5. Step 5: Solve for x
    x = 2,191,435,515.84/58,319.20
  6. Step 6: Final answer
    x = 37,576.57

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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.