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Finding the Fourth Proportional to 10,911.01, 16,368.02 and 3,888.95

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Solution

The fourth proportional to 10,911.01, 16,368.02 and 3,888.95 is: 5,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.01 : 16,368.02 = 3,888.95 : x
  2. Step 2: Convert to fraction form
    10,911.01/16,368.02 = 3,888.95/x
  3. Step 3: Cross multiply
    10,911.01x = 16,368.02 × 3,888.95
  4. Step 4: Simplify right side
    10,911.01x = 63,654,462.02
  5. Step 5: Solve for x
    x = 63,654,462.02/10,911.01
  6. Step 6: Final answer
    x = 5,833.97

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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.