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Finding the Fourth Proportional to 10,603.59, 15,891.63 and 4,356.52

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Solution

The fourth proportional to 10,603.59, 15,891.63 and 4,356.52 is: 6,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.59 : 15,891.63 = 4,356.52 : x
  2. Step 2: Convert to fraction form
    10,603.59/15,891.63 = 4,356.52/x
  3. Step 3: Cross multiply
    10,603.59x = 15,891.63 × 4,356.52
  4. Step 4: Simplify right side
    10,603.59x = 69,232,203.93
  5. Step 5: Solve for x
    x = 69,232,203.93/10,603.59
  6. Step 6: Final answer
    x = 6,529.13

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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.