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Finding the Fourth Proportional to 61,681.65, 92,525.78 and 19,564.93

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Solution

The fourth proportional to 61,681.65, 92,525.78 and 19,564.93 is: 29,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,681.65 : 92,525.78 = 19,564.93 : x
  2. Step 2: Convert to fraction form
    61,681.65/92,525.78 = 19,564.93/x
  3. Step 3: Cross multiply
    61,681.65x = 92,525.78 × 19,564.93
  4. Step 4: Simplify right side
    61,681.65x = 1,810,260,408.90
  5. Step 5: Solve for x
    x = 1,810,260,408.90/61,681.65
  6. Step 6: Final answer
    x = 29,348.44

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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.