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Finding the Fourth Proportional to 15,903.90, 23,866.65 and 8,883.90

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Solution

The fourth proportional to 15,903.90, 23,866.65 and 8,883.90 is: 13,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.90 : 23,866.65 = 8,883.90 : x
  2. Step 2: Convert to fraction form
    15,903.90/23,866.65 = 8,883.90/x
  3. Step 3: Cross multiply
    15,903.90x = 23,866.65 × 8,883.90
  4. Step 4: Simplify right side
    15,903.90x = 212,028,931.94
  5. Step 5: Solve for x
    x = 212,028,931.94/15,903.90
  6. Step 6: Final answer
    x = 13,331.88

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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.