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Finding the Fourth Proportional to 70,200.51, 96,876.78 and 38,369.43

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Solution

The fourth proportional to 70,200.51, 96,876.78 and 38,369.43 is: 52,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,200.51 : 96,876.78 = 38,369.43 : x
  2. Step 2: Convert to fraction form
    70,200.51/96,876.78 = 38,369.43/x
  3. Step 3: Cross multiply
    70,200.51x = 96,876.78 × 38,369.43
  4. Step 4: Simplify right side
    70,200.51x = 3,717,106,828.84
  5. Step 5: Solve for x
    x = 3,717,106,828.84/70,200.51
  6. Step 6: Final answer
    x = 52,949.86

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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.