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Finding the Fourth Proportional to 7,005.84, 10,508.76 and 5,372.88

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Solution

The fourth proportional to 7,005.84, 10,508.76 and 5,372.88 is: 8,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.84 : 10,508.76 = 5,372.88 : x
  2. Step 2: Convert to fraction form
    7,005.84/10,508.76 = 5,372.88/x
  3. Step 3: Cross multiply
    7,005.84x = 10,508.76 × 5,372.88
  4. Step 4: Simplify right side
    7,005.84x = 56,462,306.43
  5. Step 5: Solve for x
    x = 56,462,306.43/7,005.84
  6. Step 6: Final answer
    x = 8,059.32

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Similar ratio
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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.