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Finding the Fourth Proportional to 18,097.66, 27,129.47 and 9,765.19

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Solution

The fourth proportional to 18,097.66, 27,129.47 and 9,765.19 is: 14,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,097.66 : 27,129.47 = 9,765.19 : x
  2. Step 2: Convert to fraction form
    18,097.66/27,129.47 = 9,765.19/x
  3. Step 3: Cross multiply
    18,097.66x = 27,129.47 × 9,765.19
  4. Step 4: Simplify right side
    18,097.66x = 264,924,429.15
  5. Step 5: Solve for x
    x = 264,924,429.15/18,097.66
  6. Step 6: Final answer
    x = 14,638.60

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1.5x scale

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.