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Finding the Fourth Proportional to 8,319.03, 11,475.23 and 4,959.60

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Solution

The fourth proportional to 8,319.03, 11,475.23 and 4,959.60 is: 6,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.03 : 11,475.23 = 4,959.60 : x
  2. Step 2: Convert to fraction form
    8,319.03/11,475.23 = 4,959.60/x
  3. Step 3: Cross multiply
    8,319.03x = 11,475.23 × 4,959.60
  4. Step 4: Simplify right side
    8,319.03x = 56,912,525.91
  5. Step 5: Solve for x
    x = 56,912,525.91/8,319.03
  6. Step 6: Final answer
    x = 6,841.25

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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.