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Finding the Fourth Proportional to 18,402.74, 27,606.77 and 9,043.30

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Solution

The fourth proportional to 18,402.74, 27,606.77 and 9,043.30 is: 13,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.74 : 27,606.77 = 9,043.30 : x
  2. Step 2: Convert to fraction form
    18,402.74/27,606.77 = 9,043.30/x
  3. Step 3: Cross multiply
    18,402.74x = 27,606.77 × 9,043.30
  4. Step 4: Simplify right side
    18,402.74x = 249,656,221.93
  5. Step 5: Solve for x
    x = 249,656,221.93/18,402.74
  6. Step 6: Final answer
    x = 13,566.25

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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.