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Finding the Fourth Proportional to 61,829.32, 92,750.78 and 19,699.60

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Solution

The fourth proportional to 61,829.32, 92,750.78 and 19,699.60 is: 29,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,829.32 : 92,750.78 = 19,699.60 : x
  2. Step 2: Convert to fraction form
    61,829.32/92,750.78 = 19,699.60/x
  3. Step 3: Cross multiply
    61,829.32x = 92,750.78 × 19,699.60
  4. Step 4: Simplify right side
    61,829.32x = 1,827,153,265.69
  5. Step 5: Solve for x
    x = 1,827,153,265.69/61,829.32
  6. Step 6: Final answer
    x = 29,551.57

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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.