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Finding the Fourth Proportional to 8,587.10, 11,844.78 and 6,695.64

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Solution

The fourth proportional to 8,587.10, 11,844.78 and 6,695.64 is: 9,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.10 : 11,844.78 = 6,695.64 : x
  2. Step 2: Convert to fraction form
    8,587.10/11,844.78 = 6,695.64/x
  3. Step 3: Cross multiply
    8,587.10x = 11,844.78 × 6,695.64
  4. Step 4: Simplify right side
    8,587.10x = 79,308,382.76
  5. Step 5: Solve for x
    x = 79,308,382.76/8,587.10
  6. Step 6: Final answer
    x = 9,235.76

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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.