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Finding the Fourth Proportional to 61,698.43, 92,550.89 and 19,581.74

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Solution

The fourth proportional to 61,698.43, 92,550.89 and 19,581.74 is: 29,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,698.43 : 92,550.89 = 19,581.74 : x
  2. Step 2: Convert to fraction form
    61,698.43/92,550.89 = 19,581.74/x
  3. Step 3: Cross multiply
    61,698.43x = 92,550.89 × 19,581.74
  4. Step 4: Simplify right side
    61,698.43x = 1,812,307,464.75
  5. Step 5: Solve for x
    x = 1,812,307,464.75/61,698.43
  6. Step 6: Final answer
    x = 29,373.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.