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Finding the Fourth Proportional to 4,955.76, 6,838.92 and 2,859.88

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Solution

The fourth proportional to 4,955.76, 6,838.92 and 2,859.88 is: 3,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.76 : 6,838.92 = 2,859.88 : x
  2. Step 2: Convert to fraction form
    4,955.76/6,838.92 = 2,859.88/x
  3. Step 3: Cross multiply
    4,955.76x = 6,838.92 × 2,859.88
  4. Step 4: Simplify right side
    4,955.76x = 19,558,490.53
  5. Step 5: Solve for x
    x = 19,558,490.53/4,955.76
  6. Step 6: Final answer
    x = 3,946.62

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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.