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Finding the Fourth Proportional to 7,238.58, 10,836.74 and 4,456.91

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Solution

The fourth proportional to 7,238.58, 10,836.74 and 4,456.91 is: 6,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.58 : 10,836.74 = 4,456.91 : x
  2. Step 2: Convert to fraction form
    7,238.58/10,836.74 = 4,456.91/x
  3. Step 3: Cross multiply
    7,238.58x = 10,836.74 × 4,456.91
  4. Step 4: Simplify right side
    7,238.58x = 48,298,320.69
  5. Step 5: Solve for x
    x = 48,298,320.69/7,238.58
  6. Step 6: Final answer
    x = 6,672.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.