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Finding the Fourth Proportional to 14,909.19, 20,553.00 and 10,419.00

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Solution

The fourth proportional to 14,909.19, 20,553.00 and 10,419.00 is: 14,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.19 : 20,553.00 = 10,419.00 : x
  2. Step 2: Convert to fraction form
    14,909.19/20,553.00 = 10,419.00/x
  3. Step 3: Cross multiply
    14,909.19x = 20,553.00 × 10,419.00
  4. Step 4: Simplify right side
    14,909.19x = 214,141,616.55
  5. Step 5: Solve for x
    x = 214,141,616.55/14,909.19
  6. Step 6: Final answer
    x = 14,363.06

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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.