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Finding the Fourth Proportional to 14,899.40, 22,329.90 and 11,419.40

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Solution

The fourth proportional to 14,899.40, 22,329.90 and 11,419.40 is: 17,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.40 : 22,329.90 = 11,419.40 : x
  2. Step 2: Convert to fraction form
    14,899.40/22,329.90 = 11,419.40/x
  3. Step 3: Cross multiply
    14,899.40x = 22,329.90 × 11,419.40
  4. Step 4: Simplify right side
    14,899.40x = 254,994,060.06
  5. Step 5: Solve for x
    x = 254,994,060.06/14,899.40
  6. Step 6: Final answer
    x = 17,114.38

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1.5x scale

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.