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Finding the Fourth Proportional to 8,792.12, 13,177.92 and 7,151.60

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Solution

The fourth proportional to 8,792.12, 13,177.92 and 7,151.60 is: 10,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.12 : 13,177.92 = 7,151.60 : x
  2. Step 2: Convert to fraction form
    8,792.12/13,177.92 = 7,151.60/x
  3. Step 3: Cross multiply
    8,792.12x = 13,177.92 × 7,151.60
  4. Step 4: Simplify right side
    8,792.12x = 94,243,212.67
  5. Step 5: Solve for x
    x = 94,243,212.67/8,792.12
  6. Step 6: Final answer
    x = 10,719.05

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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.