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Finding the Fourth Proportional to 14,401.40, 19,869.49 and 8,350.41

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Solution

The fourth proportional to 14,401.40, 19,869.49 and 8,350.41 is: 11,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401.40 : 19,869.49 = 8,350.41 : x
  2. Step 2: Convert to fraction form
    14,401.40/19,869.49 = 8,350.41/x
  3. Step 3: Cross multiply
    14,401.40x = 19,869.49 × 8,350.41
  4. Step 4: Simplify right side
    14,401.40x = 165,918,417.76
  5. Step 5: Solve for x
    x = 165,918,417.76/14,401.40
  6. Step 6: Final answer
    x = 11,521.00

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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.