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Finding the Fourth Proportional to 69,698.88, 96,184.80 and 42,845.76

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Solution

The fourth proportional to 69,698.88, 96,184.80 and 42,845.76 is: 59,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.88 : 96,184.80 = 42,845.76 : x
  2. Step 2: Convert to fraction form
    69,698.88/96,184.80 = 42,845.76/x
  3. Step 3: Cross multiply
    69,698.88x = 96,184.80 × 42,845.76
  4. Step 4: Simplify right side
    69,698.88x = 4,121,110,856.45
  5. Step 5: Solve for x
    x = 4,121,110,856.45/69,698.88
  6. Step 6: Final answer
    x = 59,127.36

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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.