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Finding the Fourth Proportional to 15,985.22, 23,984.74 and 8,581.03

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Solution

The fourth proportional to 15,985.22, 23,984.74 and 8,581.03 is: 12,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.22 : 23,984.74 = 8,581.03 : x
  2. Step 2: Convert to fraction form
    15,985.22/23,984.74 = 8,581.03/x
  3. Step 3: Cross multiply
    15,985.22x = 23,984.74 × 8,581.03
  4. Step 4: Simplify right side
    15,985.22x = 205,813,773.48
  5. Step 5: Solve for x
    x = 205,813,773.48/15,985.22
  6. Step 6: Final answer
    x = 12,875.25

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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.