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Finding the Fourth Proportional to 9,866.88, 14,799.96 and 2,941.20

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Solution

The fourth proportional to 9,866.88, 14,799.96 and 2,941.20 is: 4,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.88 : 14,799.96 = 2,941.20 : x
  2. Step 2: Convert to fraction form
    9,866.88/14,799.96 = 2,941.20/x
  3. Step 3: Cross multiply
    9,866.88x = 14,799.96 × 2,941.20
  4. Step 4: Simplify right side
    9,866.88x = 43,529,642.35
  5. Step 5: Solve for x
    x = 43,529,642.35/9,866.88
  6. Step 6: Final answer
    x = 4,411.69

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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.