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Finding the Fourth Proportional to 45,328.86, 67,968.33 and 15,744.30

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Solution

The fourth proportional to 45,328.86, 67,968.33 and 15,744.30 is: 23,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,328.86 : 67,968.33 = 15,744.30 : x
  2. Step 2: Convert to fraction form
    45,328.86/67,968.33 = 15,744.30/x
  3. Step 3: Cross multiply
    45,328.86x = 67,968.33 × 15,744.30
  4. Step 4: Simplify right side
    45,328.86x = 1,070,113,778.02
  5. Step 5: Solve for x
    x = 1,070,113,778.02/45,328.86
  6. Step 6: Final answer
    x = 23,607.78

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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.