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Finding the Fourth Proportional to 70,843.49, 97,763.52 and 39,012.14

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Solution

The fourth proportional to 70,843.49, 97,763.52 and 39,012.14 is: 53,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,843.49 : 97,763.52 = 39,012.14 : x
  2. Step 2: Convert to fraction form
    70,843.49/97,763.52 = 39,012.14/x
  3. Step 3: Cross multiply
    70,843.49x = 97,763.52 × 39,012.14
  4. Step 4: Simplify right side
    70,843.49x = 3,813,964,129.13
  5. Step 5: Solve for x
    x = 3,813,964,129.13/70,843.49
  6. Step 6: Final answer
    x = 53,836.48

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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.