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Finding the Fourth Proportional to 70,157.70, 96,817.20 and 38,326.32

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Solution

The fourth proportional to 70,157.70, 96,817.20 and 38,326.32 is: 52,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,157.70 : 96,817.20 = 38,326.32 : x
  2. Step 2: Convert to fraction form
    70,157.70/96,817.20 = 38,326.32/x
  3. Step 3: Cross multiply
    70,157.70x = 96,817.20 × 38,326.32
  4. Step 4: Simplify right side
    70,157.70x = 3,710,646,988.70
  5. Step 5: Solve for x
    x = 3,710,646,988.70/70,157.70
  6. Step 6: Final answer
    x = 52,890.09

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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.