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Finding the Fourth Proportional to 63,466.80, 87,612.60 and 45,649.20

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Solution

The fourth proportional to 63,466.80, 87,612.60 and 45,649.20 is: 63,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,466.80 : 87,612.60 = 45,649.20 : x
  2. Step 2: Convert to fraction form
    63,466.80/87,612.60 = 45,649.20/x
  3. Step 3: Cross multiply
    63,466.80x = 87,612.60 × 45,649.20
  4. Step 4: Simplify right side
    63,466.80x = 3,999,445,099.92
  5. Step 5: Solve for x
    x = 3,999,445,099.92/63,466.80
  6. Step 6: Final answer
    x = 63,016.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.