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Finding the Fourth Proportional to 8,676.32, 11,973.53 and 5,272.16

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Solution

The fourth proportional to 8,676.32, 11,973.53 and 5,272.16 is: 7,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.32 : 11,973.53 = 5,272.16 : x
  2. Step 2: Convert to fraction form
    8,676.32/11,973.53 = 5,272.16/x
  3. Step 3: Cross multiply
    8,676.32x = 11,973.53 × 5,272.16
  4. Step 4: Simplify right side
    8,676.32x = 63,126,319.24
  5. Step 5: Solve for x
    x = 63,126,319.24/8,676.32
  6. Step 6: Final answer
    x = 7,275.71

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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.