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Finding the Fourth Proportional to 11,595.18, 17,392.90 and 3,275.40

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Solution

The fourth proportional to 11,595.18, 17,392.90 and 3,275.40 is: 4,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,595.18 : 17,392.90 = 3,275.40 : x
  2. Step 2: Convert to fraction form
    11,595.18/17,392.90 = 3,275.40/x
  3. Step 3: Cross multiply
    11,595.18x = 17,392.90 × 3,275.40
  4. Step 4: Simplify right side
    11,595.18x = 56,968,704.66
  5. Step 5: Solve for x
    x = 56,968,704.66/11,595.18
  6. Step 6: Final answer
    x = 4,913.14

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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.