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Finding the Fourth Proportional to 9,342.65, 12,892.85 and 5,093.71

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Solution

The fourth proportional to 9,342.65, 12,892.85 and 5,093.71 is: 7,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.65 : 12,892.85 = 5,093.71 : x
  2. Step 2: Convert to fraction form
    9,342.65/12,892.85 = 5,093.71/x
  3. Step 3: Cross multiply
    9,342.65x = 12,892.85 × 5,093.71
  4. Step 4: Simplify right side
    9,342.65x = 65,672,506.42
  5. Step 5: Solve for x
    x = 65,672,506.42/9,342.65
  6. Step 6: Final answer
    x = 7,029.32

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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.