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Finding the Fourth Proportional to 45,920.40, 68,880.60 and 16,371.60

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Solution

The fourth proportional to 45,920.40, 68,880.60 and 16,371.60 is: 24,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,920.40 : 68,880.60 = 16,371.60 : x
  2. Step 2: Convert to fraction form
    45,920.40/68,880.60 = 16,371.60/x
  3. Step 3: Cross multiply
    45,920.40x = 68,880.60 × 16,371.60
  4. Step 4: Simplify right side
    45,920.40x = 1,127,685,630.96
  5. Step 5: Solve for x
    x = 1,127,685,630.96/45,920.40
  6. Step 6: Final answer
    x = 24,557.40

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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.