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Finding the Fourth Proportional to 9,888.68, 14,835.36 and 2,963

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Solution

The fourth proportional to 9,888.68, 14,835.36 and 2,963 is: 4,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.68 : 14,835.36 = 2,963 : x
  2. Step 2: Convert to fraction form
    9,888.68/14,835.36 = 2,963/x
  3. Step 3: Cross multiply
    9,888.68x = 14,835.36 × 2,963
  4. Step 4: Simplify right side
    9,888.68x = 43,957,171.68
  5. Step 5: Solve for x
    x = 43,957,171.68/9,888.68
  6. Step 6: Final answer
    x = 4,445.20

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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.