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Finding the Fourth Proportional to 70,798.24, 97,699.73 and 38,531.49

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Solution

The fourth proportional to 70,798.24, 97,699.73 and 38,531.49 is: 53,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,798.24 : 97,699.73 = 38,531.49 : x
  2. Step 2: Convert to fraction form
    70,798.24/97,699.73 = 38,531.49/x
  3. Step 3: Cross multiply
    70,798.24x = 97,699.73 × 38,531.49
  4. Step 4: Simplify right side
    70,798.24x = 3,764,516,169.50
  5. Step 5: Solve for x
    x = 3,764,516,169.50/70,798.24
  6. Step 6: Final answer
    x = 53,172.45

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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.