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Finding the Fourth Proportional to 61,478.31, 92,155.91 and 23,986.80

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Solution

The fourth proportional to 61,478.31, 92,155.91 and 23,986.80 is: 35,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,478.31 : 92,155.91 = 23,986.80 : x
  2. Step 2: Convert to fraction form
    61,478.31/92,155.91 = 23,986.80/x
  3. Step 3: Cross multiply
    61,478.31x = 92,155.91 × 23,986.80
  4. Step 4: Simplify right side
    61,478.31x = 2,210,525,381.99
  5. Step 5: Solve for x
    x = 2,210,525,381.99/61,478.31
  6. Step 6: Final answer
    x = 35,956.18

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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.