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Finding the Fourth Proportional to 1,063.24, 1,593.25 and 715.30

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Solution

The fourth proportional to 1,063.24, 1,593.25 and 715.30 is: 1,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.24 : 1,593.25 = 715.30 : x
  2. Step 2: Convert to fraction form
    1,063.24/1,593.25 = 715.30/x
  3. Step 3: Cross multiply
    1,063.24x = 1,593.25 × 715.30
  4. Step 4: Simplify right side
    1,063.24x = 1,139,649.98
  5. Step 5: Solve for x
    x = 1,139,649.98/1,063.24
  6. Step 6: Final answer
    x = 1,071.86

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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.