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Finding the Fourth Proportional to 14,402.90, 19,875.92 and 8,029.41

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Solution

The fourth proportional to 14,402.90, 19,875.92 and 8,029.41 is: 11,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,402.90 : 19,875.92 = 8,029.41 : x
  2. Step 2: Convert to fraction form
    14,402.90/19,875.92 = 8,029.41/x
  3. Step 3: Cross multiply
    14,402.90x = 19,875.92 × 8,029.41
  4. Step 4: Simplify right side
    14,402.90x = 159,591,870.66
  5. Step 5: Solve for x
    x = 159,591,870.66/14,402.90
  6. Step 6: Final answer
    x = 11,080.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.