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Finding the Fourth Proportional to 61,762.30, 92,601.53 and 19,629.74

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Solution

The fourth proportional to 61,762.30, 92,601.53 and 19,629.74 is: 29,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,762.30 : 92,601.53 = 19,629.74 : x
  2. Step 2: Convert to fraction form
    61,762.30/92,601.53 = 19,629.74/x
  3. Step 3: Cross multiply
    61,762.30x = 92,601.53 × 19,629.74
  4. Step 4: Simplify right side
    61,762.30x = 1,817,744,164.47
  5. Step 5: Solve for x
    x = 1,817,744,164.47/61,762.30
  6. Step 6: Final answer
    x = 29,431.29

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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.