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Finding the Fourth Proportional to 4,472.64, 6,710.88 and 1,876.16

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Solution

The fourth proportional to 4,472.64, 6,710.88 and 1,876.16 is: 2,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.64 : 6,710.88 = 1,876.16 : x
  2. Step 2: Convert to fraction form
    4,472.64/6,710.88 = 1,876.16/x
  3. Step 3: Cross multiply
    4,472.64x = 6,710.88 × 1,876.16
  4. Step 4: Simplify right side
    4,472.64x = 12,590,684.62
  5. Step 5: Solve for x
    x = 12,590,684.62/4,472.64
  6. Step 6: Final answer
    x = 2,815.05

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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.