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Finding the Fourth Proportional to 61,918.08, 92,888.04 and 19,801.86

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Solution

The fourth proportional to 61,918.08, 92,888.04 and 19,801.86 is: 29,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.08 : 92,888.04 = 19,801.86 : x
  2. Step 2: Convert to fraction form
    61,918.08/92,888.04 = 19,801.86/x
  3. Step 3: Cross multiply
    61,918.08x = 92,888.04 × 19,801.86
  4. Step 4: Simplify right side
    61,918.08x = 1,839,355,963.75
  5. Step 5: Solve for x
    x = 1,839,355,963.75/61,918.08
  6. Step 6: Final answer
    x = 29,706.28

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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.