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Finding the Fourth Proportional to 56,439.99, 84,649.05 and 53,630.10

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Solution

The fourth proportional to 56,439.99, 84,649.05 and 53,630.10 is: 80,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,439.99 : 84,649.05 = 53,630.10 : x
  2. Step 2: Convert to fraction form
    56,439.99/84,649.05 = 53,630.10/x
  3. Step 3: Cross multiply
    56,439.99x = 84,649.05 × 53,630.10
  4. Step 4: Simplify right side
    56,439.99x = 4,539,737,016.41
  5. Step 5: Solve for x
    x = 4,539,737,016.41/56,439.99
  6. Step 6: Final answer
    x = 80,434.76

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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.