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Finding the Fourth Proportional to 7,248.40, 10,849.02 and 3,953.32

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Solution

The fourth proportional to 7,248.40, 10,849.02 and 3,953.32 is: 5,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.40 : 10,849.02 = 3,953.32 : x
  2. Step 2: Convert to fraction form
    7,248.40/10,849.02 = 3,953.32/x
  3. Step 3: Cross multiply
    7,248.40x = 10,849.02 × 3,953.32
  4. Step 4: Simplify right side
    7,248.40x = 42,889,647.75
  5. Step 5: Solve for x
    x = 42,889,647.75/7,248.40
  6. Step 6: Final answer
    x = 5,917.12

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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.