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Finding the Fourth Proportional to 7,302.88, 10,078.73 and 4,472.16

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Solution

The fourth proportional to 7,302.88, 10,078.73 and 4,472.16 is: 6,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.88 : 10,078.73 = 4,472.16 : x
  2. Step 2: Convert to fraction form
    7,302.88/10,078.73 = 4,472.16/x
  3. Step 3: Cross multiply
    7,302.88x = 10,078.73 × 4,472.16
  4. Step 4: Simplify right side
    7,302.88x = 45,073,693.16
  5. Step 5: Solve for x
    x = 45,073,693.16/7,302.88
  6. Step 6: Final answer
    x = 6,172.04

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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.