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Finding the Fourth Proportional to 8,339.04, 11,500.80 and 5,148.48

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Solution

The fourth proportional to 8,339.04, 11,500.80 and 5,148.48 is: 7,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.04 : 11,500.80 = 5,148.48 : x
  2. Step 2: Convert to fraction form
    8,339.04/11,500.80 = 5,148.48/x
  3. Step 3: Cross multiply
    8,339.04x = 11,500.80 × 5,148.48
  4. Step 4: Simplify right side
    8,339.04x = 59,211,638.78
  5. Step 5: Solve for x
    x = 59,211,638.78/8,339.04
  6. Step 6: Final answer
    x = 7,100.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.