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Finding the Fourth Proportional to 70,077.94, 96,710.22 and 39,866.02

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Solution

The fourth proportional to 70,077.94, 96,710.22 and 39,866.02 is: 55,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.94 : 96,710.22 = 39,866.02 : x
  2. Step 2: Convert to fraction form
    70,077.94/96,710.22 = 39,866.02/x
  3. Step 3: Cross multiply
    70,077.94x = 96,710.22 × 39,866.02
  4. Step 4: Simplify right side
    70,077.94x = 3,855,451,322.95
  5. Step 5: Solve for x
    x = 3,855,451,322.95/70,077.94
  6. Step 6: Final answer
    x = 55,016.62

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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.