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Finding the Fourth Proportional to 70,453.04, 97,231.32 and 38,628

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Solution

The fourth proportional to 70,453.04, 97,231.32 and 38,628 is: 53,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,453.04 : 97,231.32 = 38,628 : x
  2. Step 2: Convert to fraction form
    70,453.04/97,231.32 = 38,628/x
  3. Step 3: Cross multiply
    70,453.04x = 97,231.32 × 38,628
  4. Step 4: Simplify right side
    70,453.04x = 3,755,851,428.96
  5. Step 5: Solve for x
    x = 3,755,851,428.96/70,453.04
  6. Step 6: Final answer
    x = 53,310.00

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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.