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Finding the Fourth Proportional to 7,232.80, 10,849.20 and 6,714.40

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Solution

The fourth proportional to 7,232.80, 10,849.20 and 6,714.40 is: 10,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.80 : 10,849.20 = 6,714.40 : x
  2. Step 2: Convert to fraction form
    7,232.80/10,849.20 = 6,714.40/x
  3. Step 3: Cross multiply
    7,232.80x = 10,849.20 × 6,714.40
  4. Step 4: Simplify right side
    7,232.80x = 72,845,868.48
  5. Step 5: Solve for x
    x = 72,845,868.48/7,232.80
  6. Step 6: Final answer
    x = 10,071.60

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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.