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Finding the Fourth Proportional to 8,470.80, 12,701.04 and 5,010.48

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Solution

The fourth proportional to 8,470.80, 12,701.04 and 5,010.48 is: 7,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.80 : 12,701.04 = 5,010.48 : x
  2. Step 2: Convert to fraction form
    8,470.80/12,701.04 = 5,010.48/x
  3. Step 3: Cross multiply
    8,470.80x = 12,701.04 × 5,010.48
  4. Step 4: Simplify right side
    8,470.80x = 63,638,306.90
  5. Step 5: Solve for x
    x = 63,638,306.90/8,470.80
  6. Step 6: Final answer
    x = 7,512.67

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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.