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Finding the Fourth Proportional to 15,985.50, 23,987.97 and 6,751.50

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Solution

The fourth proportional to 15,985.50, 23,987.97 and 6,751.50 is: 10,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.50 : 23,987.97 = 6,751.50 : x
  2. Step 2: Convert to fraction form
    15,985.50/23,987.97 = 6,751.50/x
  3. Step 3: Cross multiply
    15,985.50x = 23,987.97 × 6,751.50
  4. Step 4: Simplify right side
    15,985.50x = 161,954,779.46
  5. Step 5: Solve for x
    x = 161,954,779.46/15,985.50
  6. Step 6: Final answer
    x = 10,131.36

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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.