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Finding the Fourth Proportional to 8,897.32, 13,347.42 and 2,739.88

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Solution

The fourth proportional to 8,897.32, 13,347.42 and 2,739.88 is: 4,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.32 : 13,347.42 = 2,739.88 : x
  2. Step 2: Convert to fraction form
    8,897.32/13,347.42 = 2,739.88/x
  3. Step 3: Cross multiply
    8,897.32x = 13,347.42 × 2,739.88
  4. Step 4: Simplify right side
    8,897.32x = 36,570,329.11
  5. Step 5: Solve for x
    x = 36,570,329.11/8,897.32
  6. Step 6: Final answer
    x = 4,110.26

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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.