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Finding the Fourth Proportional to 45,132, 67,701.60 and 15,549.84

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Solution

The fourth proportional to 45,132, 67,701.60 and 15,549.84 is: 23,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,132 : 67,701.60 = 15,549.84 : x
  2. Step 2: Convert to fraction form
    45,132/67,701.60 = 15,549.84/x
  3. Step 3: Cross multiply
    45,132x = 67,701.60 × 15,549.84
  4. Step 4: Simplify right side
    45,132x = 1,052,749,047.74
  5. Step 5: Solve for x
    x = 1,052,749,047.74/45,132
  6. Step 6: Final answer
    x = 23,326.00

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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.