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Finding the Fourth Proportional to 7,703.52, 10,621.14 and 5,046.72

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Solution

The fourth proportional to 7,703.52, 10,621.14 and 5,046.72 is: 6,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.52 : 10,621.14 = 5,046.72 : x
  2. Step 2: Convert to fraction form
    7,703.52/10,621.14 = 5,046.72/x
  3. Step 3: Cross multiply
    7,703.52x = 10,621.14 × 5,046.72
  4. Step 4: Simplify right side
    7,703.52x = 53,601,919.66
  5. Step 5: Solve for x
    x = 53,601,919.66/7,703.52
  6. Step 6: Final answer
    x = 6,958.11

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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.