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Finding the Fourth Proportional to 63,818.40, 87,978.12 and 44,896.80

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Solution

The fourth proportional to 63,818.40, 87,978.12 and 44,896.80 is: 61,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,818.40 : 87,978.12 = 44,896.80 : x
  2. Step 2: Convert to fraction form
    63,818.40/87,978.12 = 44,896.80/x
  3. Step 3: Cross multiply
    63,818.40x = 87,978.12 × 44,896.80
  4. Step 4: Simplify right side
    63,818.40x = 3,949,936,058.02
  5. Step 5: Solve for x
    x = 3,949,936,058.02/63,818.40
  6. Step 6: Final answer
    x = 61,893.37

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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.