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Finding the Fourth Proportional to 70,584.34, 97,406.58 and 38,755.30

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Solution

The fourth proportional to 70,584.34, 97,406.58 and 38,755.30 is: 53,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.34 : 97,406.58 = 38,755.30 : x
  2. Step 2: Convert to fraction form
    70,584.34/97,406.58 = 38,755.30/x
  3. Step 3: Cross multiply
    70,584.34x = 97,406.58 × 38,755.30
  4. Step 4: Simplify right side
    70,584.34x = 3,775,021,229.87
  5. Step 5: Solve for x
    x = 3,775,021,229.87/70,584.34
  6. Step 6: Final answer
    x = 53,482.42

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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.