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Finding the Fourth Proportional to 8,825.76, 13,253.28 and 7,376.16

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Solution

The fourth proportional to 8,825.76, 13,253.28 and 7,376.16 is: 11,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.76 : 13,253.28 = 7,376.16 : x
  2. Step 2: Convert to fraction form
    8,825.76/13,253.28 = 7,376.16/x
  3. Step 3: Cross multiply
    8,825.76x = 13,253.28 × 7,376.16
  4. Step 4: Simplify right side
    8,825.76x = 97,758,313.80
  5. Step 5: Solve for x
    x = 97,758,313.80/8,825.76
  6. Step 6: Final answer
    x = 11,076.48

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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.