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Finding the Fourth Proportional to 15,991.72, 23,987.63 and 6,134.02

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Solution

The fourth proportional to 15,991.72, 23,987.63 and 6,134.02 is: 9,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.72 : 23,987.63 = 6,134.02 : x
  2. Step 2: Convert to fraction form
    15,991.72/23,987.63 = 6,134.02/x
  3. Step 3: Cross multiply
    15,991.72x = 23,987.63 × 6,134.02
  4. Step 4: Simplify right side
    15,991.72x = 147,140,602.17
  5. Step 5: Solve for x
    x = 147,140,602.17/15,991.72
  6. Step 6: Final answer
    x = 9,201.05

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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.