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Finding the Fourth Proportional to 41,987.09, 62,975.10 and 13,900.18

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Solution

The fourth proportional to 41,987.09, 62,975.10 and 13,900.18 is: 20,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,987.09 : 62,975.10 = 13,900.18 : x
  2. Step 2: Convert to fraction form
    41,987.09/62,975.10 = 13,900.18/x
  3. Step 3: Cross multiply
    41,987.09x = 62,975.10 × 13,900.18
  4. Step 4: Simplify right side
    41,987.09x = 875,365,225.52
  5. Step 5: Solve for x
    x = 875,365,225.52/41,987.09
  6. Step 6: Final answer
    x = 20,848.44

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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.