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Finding the Fourth Proportional to 63,998.40, 88,235.28 and 43,820.52

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Solution

The fourth proportional to 63,998.40, 88,235.28 and 43,820.52 is: 60,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,998.40 : 88,235.28 = 43,820.52 : x
  2. Step 2: Convert to fraction form
    63,998.40/88,235.28 = 43,820.52/x
  3. Step 3: Cross multiply
    63,998.40x = 88,235.28 × 43,820.52
  4. Step 4: Simplify right side
    63,998.40x = 3,866,515,851.95
  5. Step 5: Solve for x
    x = 3,866,515,851.95/63,998.40
  6. Step 6: Final answer
    x = 60,415.82

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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.