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Finding the Fourth Proportional to 14,838.90, 22,259.88 and 4,979.22

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Solution

The fourth proportional to 14,838.90, 22,259.88 and 4,979.22 is: 7,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,838.90 : 22,259.88 = 4,979.22 : x
  2. Step 2: Convert to fraction form
    14,838.90/22,259.88 = 4,979.22/x
  3. Step 3: Cross multiply
    14,838.90x = 22,259.88 × 4,979.22
  4. Step 4: Simplify right side
    14,838.90x = 110,836,839.69
  5. Step 5: Solve for x
    x = 110,836,839.69/14,838.90
  6. Step 6: Final answer
    x = 7,469.34

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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.