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Finding the Fourth Proportional to 8,752.16, 12,065.28 and 6,652.64

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Solution

The fourth proportional to 8,752.16, 12,065.28 and 6,652.64 is: 9,170.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.16 : 12,065.28 = 6,652.64 : x
  2. Step 2: Convert to fraction form
    8,752.16/12,065.28 = 6,652.64/x
  3. Step 3: Cross multiply
    8,752.16x = 12,065.28 × 6,652.64
  4. Step 4: Simplify right side
    8,752.16x = 80,265,964.34
  5. Step 5: Solve for x
    x = 80,265,964.34/8,752.16
  6. Step 6: Final answer
    x = 9,170.99

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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.