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Finding the Fourth Proportional to 61,842.48, 92,771.01 and 19,707.90

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Solution

The fourth proportional to 61,842.48, 92,771.01 and 19,707.90 is: 29,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,842.48 : 92,771.01 = 19,707.90 : x
  2. Step 2: Convert to fraction form
    61,842.48/92,771.01 = 19,707.90/x
  3. Step 3: Cross multiply
    61,842.48x = 92,771.01 × 19,707.90
  4. Step 4: Simplify right side
    61,842.48x = 1,828,321,787.98
  5. Step 5: Solve for x
    x = 1,828,321,787.98/61,842.48
  6. Step 6: Final answer
    x = 29,564.17

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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.