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Finding the Fourth Proportional to 14,377.77, 21,560.48 and 5,015

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Solution

The fourth proportional to 14,377.77, 21,560.48 and 5,015 is: 7,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,377.77 : 21,560.48 = 5,015 : x
  2. Step 2: Convert to fraction form
    14,377.77/21,560.48 = 5,015/x
  3. Step 3: Cross multiply
    14,377.77x = 21,560.48 × 5,015
  4. Step 4: Simplify right side
    14,377.77x = 108,125,807.20
  5. Step 5: Solve for x
    x = 108,125,807.20/14,377.77
  6. Step 6: Final answer
    x = 7,520.35

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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.