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Finding the Fourth Proportional to 10,603.77, 15,896.53 and 4,359.88

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Solution

The fourth proportional to 10,603.77, 15,896.53 and 4,359.88 is: 6,536.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.77 : 15,896.53 = 4,359.88 : x
  2. Step 2: Convert to fraction form
    10,603.77/15,896.53 = 4,359.88/x
  3. Step 3: Cross multiply
    10,603.77x = 15,896.53 × 4,359.88
  4. Step 4: Simplify right side
    10,603.77x = 69,306,963.22
  5. Step 5: Solve for x
    x = 69,306,963.22/10,603.77
  6. Step 6: Final answer
    x = 6,536.07

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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.