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Finding the Fourth Proportional to 7,393.60, 11,074.20 and 6,572.80

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Solution

The fourth proportional to 7,393.60, 11,074.20 and 6,572.80 is: 9,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393.60 : 11,074.20 = 6,572.80 : x
  2. Step 2: Convert to fraction form
    7,393.60/11,074.20 = 6,572.80/x
  3. Step 3: Cross multiply
    7,393.60x = 11,074.20 × 6,572.80
  4. Step 4: Simplify right side
    7,393.60x = 72,788,501.76
  5. Step 5: Solve for x
    x = 72,788,501.76/7,393.60
  6. Step 6: Final answer
    x = 9,844.80

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1.5x scale

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.