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Finding the Fourth Proportional to 15,155.60, 22,743.09 and 7,360.16

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Solution

The fourth proportional to 15,155.60, 22,743.09 and 7,360.16 is: 11,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.60 : 22,743.09 = 7,360.16 : x
  2. Step 2: Convert to fraction form
    15,155.60/22,743.09 = 7,360.16/x
  3. Step 3: Cross multiply
    15,155.60x = 22,743.09 × 7,360.16
  4. Step 4: Simplify right side
    15,155.60x = 167,392,667.58
  5. Step 5: Solve for x
    x = 167,392,667.58/15,155.60
  6. Step 6: Final answer
    x = 11,044.94

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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.