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Finding the Fourth Proportional to 71,752.58, 107,632.91 and 21,834.30

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Solution

The fourth proportional to 71,752.58, 107,632.91 and 21,834.30 is: 32,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,752.58 : 107,632.91 = 21,834.30 : x
  2. Step 2: Convert to fraction form
    71,752.58/107,632.91 = 21,834.30/x
  3. Step 3: Cross multiply
    71,752.58x = 107,632.91 × 21,834.30
  4. Step 4: Simplify right side
    71,752.58x = 2,350,089,301.40
  5. Step 5: Solve for x
    x = 2,350,089,301.40/71,752.58
  6. Step 6: Final answer
    x = 32,752.68

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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.