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Finding the Fourth Proportional to 61,017.75, 91,528.25 and 19,464.75

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Solution

The fourth proportional to 61,017.75, 91,528.25 and 19,464.75 is: 29,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,017.75 : 91,528.25 = 19,464.75 : x
  2. Step 2: Convert to fraction form
    61,017.75/91,528.25 = 19,464.75/x
  3. Step 3: Cross multiply
    61,017.75x = 91,528.25 × 19,464.75
  4. Step 4: Simplify right side
    61,017.75x = 1,781,574,406.86
  5. Step 5: Solve for x
    x = 1,781,574,406.86/61,017.75
  6. Step 6: Final answer
    x = 29,197.64

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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.