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Finding the Fourth Proportional to 5,087.16, 6,959.85 and 5,065.32

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Solution

The fourth proportional to 5,087.16, 6,959.85 and 5,065.32 is: 6,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.16 : 6,959.85 = 5,065.32 : x
  2. Step 2: Convert to fraction form
    5,087.16/6,959.85 = 5,065.32/x
  3. Step 3: Cross multiply
    5,087.16x = 6,959.85 × 5,065.32
  4. Step 4: Simplify right side
    5,087.16x = 35,253,867.40
  5. Step 5: Solve for x
    x = 35,253,867.40/5,087.16
  6. Step 6: Final answer
    x = 6,929.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.