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Finding the Fourth Proportional to 70,593.48, 97,418.70 and 38,763

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Solution

The fourth proportional to 70,593.48, 97,418.70 and 38,763 is: 53,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593.48 : 97,418.70 = 38,763 : x
  2. Step 2: Convert to fraction form
    70,593.48/97,418.70 = 38,763/x
  3. Step 3: Cross multiply
    70,593.48x = 97,418.70 × 38,763
  4. Step 4: Simplify right side
    70,593.48x = 3,776,241,068.10
  5. Step 5: Solve for x
    x = 3,776,241,068.10/70,593.48
  6. Step 6: Final answer
    x = 53,492.77

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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.