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Finding the Fourth Proportional to 45,232.40, 67,848.60 and 15,640.40

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Solution

The fourth proportional to 45,232.40, 67,848.60 and 15,640.40 is: 23,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,232.40 : 67,848.60 = 15,640.40 : x
  2. Step 2: Convert to fraction form
    45,232.40/67,848.60 = 15,640.40/x
  3. Step 3: Cross multiply
    45,232.40x = 67,848.60 × 15,640.40
  4. Step 4: Simplify right side
    45,232.40x = 1,061,179,243.44
  5. Step 5: Solve for x
    x = 1,061,179,243.44/45,232.40
  6. Step 6: Final answer
    x = 23,460.60

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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.