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Finding the Fourth Proportional to 18,190.61, 27,290.01 and 5,710.58

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Solution

The fourth proportional to 18,190.61, 27,290.01 and 5,710.58 is: 8,567.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.61 : 27,290.01 = 5,710.58 : x
  2. Step 2: Convert to fraction form
    18,190.61/27,290.01 = 5,710.58/x
  3. Step 3: Cross multiply
    18,190.61x = 27,290.01 × 5,710.58
  4. Step 4: Simplify right side
    18,190.61x = 155,841,785.31
  5. Step 5: Solve for x
    x = 155,841,785.31/18,190.61
  6. Step 6: Final answer
    x = 8,567.16

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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.