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Finding the Fourth Proportional to 70,353.88, 97,087.39 and 38,522.78

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Solution

The fourth proportional to 70,353.88, 97,087.39 and 38,522.78 is: 53,160.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,353.88 : 97,087.39 = 38,522.78 : x
  2. Step 2: Convert to fraction form
    70,353.88/97,087.39 = 38,522.78/x
  3. Step 3: Cross multiply
    70,353.88x = 97,087.39 × 38,522.78
  4. Step 4: Simplify right side
    70,353.88x = 3,740,076,164.77
  5. Step 5: Solve for x
    x = 3,740,076,164.77/70,353.88
  6. Step 6: Final answer
    x = 53,160.91

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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.