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Finding the Fourth Proportional to 10,360.86, 15,543.72 and 2,965.11

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Solution

The fourth proportional to 10,360.86, 15,543.72 and 2,965.11 is: 4,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.86 : 15,543.72 = 2,965.11 : x
  2. Step 2: Convert to fraction form
    10,360.86/15,543.72 = 2,965.11/x
  3. Step 3: Cross multiply
    10,360.86x = 15,543.72 × 2,965.11
  4. Step 4: Simplify right side
    10,360.86x = 46,088,839.61
  5. Step 5: Solve for x
    x = 46,088,839.61/10,360.86
  6. Step 6: Final answer
    x = 4,448.36

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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.