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Finding the Fourth Proportional to 61,347.52, 92,021.08 and 19,230.80

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Solution

The fourth proportional to 61,347.52, 92,021.08 and 19,230.80 is: 28,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.52 : 92,021.08 = 19,230.80 : x
  2. Step 2: Convert to fraction form
    61,347.52/92,021.08 = 19,230.80/x
  3. Step 3: Cross multiply
    61,347.52x = 92,021.08 × 19,230.80
  4. Step 4: Simplify right side
    61,347.52x = 1,769,638,985.26
  5. Step 5: Solve for x
    x = 1,769,638,985.26/61,347.52
  6. Step 6: Final answer
    x = 28,846.14

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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.