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Finding the Fourth Proportional to 70,648, 97,495.32 and 38,817.52

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Solution

The fourth proportional to 70,648, 97,495.32 and 38,817.52 is: 53,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,648 : 97,495.32 = 38,817.52 : x
  2. Step 2: Convert to fraction form
    70,648/97,495.32 = 38,817.52/x
  3. Step 3: Cross multiply
    70,648x = 97,495.32 × 38,817.52
  4. Step 4: Simplify right side
    70,648x = 3,784,526,534.01
  5. Step 5: Solve for x
    x = 3,784,526,534.01/70,648
  6. Step 6: Final answer
    x = 53,568.77

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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.