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Finding the Fourth Proportional to 70,720.56, 97,594.72 and 38,891.52

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Solution

The fourth proportional to 70,720.56, 97,594.72 and 38,891.52 is: 53,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,720.56 : 97,594.72 = 38,891.52 : x
  2. Step 2: Convert to fraction form
    70,720.56/97,594.72 = 38,891.52/x
  3. Step 3: Cross multiply
    70,720.56x = 97,594.72 × 38,891.52
  4. Step 4: Simplify right side
    70,720.56x = 3,795,607,004.77
  5. Step 5: Solve for x
    x = 3,795,607,004.77/70,720.56
  6. Step 6: Final answer
    x = 53,670.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.