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Finding the Fourth Proportional to 4,959.60, 6,838.20 and 4,369.20

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Solution

The fourth proportional to 4,959.60, 6,838.20 and 4,369.20 is: 6,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.60 : 6,838.20 = 4,369.20 : x
  2. Step 2: Convert to fraction form
    4,959.60/6,838.20 = 4,369.20/x
  3. Step 3: Cross multiply
    4,959.60x = 6,838.20 × 4,369.20
  4. Step 4: Simplify right side
    4,959.60x = 29,877,463.44
  5. Step 5: Solve for x
    x = 29,877,463.44/4,959.60
  6. Step 6: Final answer
    x = 6,024.17

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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.