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Finding the Fourth Proportional to 61,002.72, 84,155.76 and 35,834.40

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Solution

The fourth proportional to 61,002.72, 84,155.76 and 35,834.40 is: 49,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002.72 : 84,155.76 = 35,834.40 : x
  2. Step 2: Convert to fraction form
    61,002.72/84,155.76 = 35,834.40/x
  3. Step 3: Cross multiply
    61,002.72x = 84,155.76 × 35,834.40
  4. Step 4: Simplify right side
    61,002.72x = 3,015,671,166.14
  5. Step 5: Solve for x
    x = 3,015,671,166.14/61,002.72
  6. Step 6: Final answer
    x = 49,435.03

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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.