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Finding the Fourth Proportional to 7,339.96, 10,129.28 and 4,195.96

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Solution

The fourth proportional to 7,339.96, 10,129.28 and 4,195.96 is: 5,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.96 : 10,129.28 = 4,195.96 : x
  2. Step 2: Convert to fraction form
    7,339.96/10,129.28 = 4,195.96/x
  3. Step 3: Cross multiply
    7,339.96x = 10,129.28 × 4,195.96
  4. Step 4: Simplify right side
    7,339.96x = 42,502,053.71
  5. Step 5: Solve for x
    x = 42,502,053.71/7,339.96
  6. Step 6: Final answer
    x = 5,790.50

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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.