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Finding the Fourth Proportional to 10,721.92, 14,797.02 and 6,474.01

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Solution

The fourth proportional to 10,721.92, 14,797.02 and 6,474.01 is: 8,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.92 : 14,797.02 = 6,474.01 : x
  2. Step 2: Convert to fraction form
    10,721.92/14,797.02 = 6,474.01/x
  3. Step 3: Cross multiply
    10,721.92x = 14,797.02 × 6,474.01
  4. Step 4: Simplify right side
    10,721.92x = 95,796,055.45
  5. Step 5: Solve for x
    x = 95,796,055.45/10,721.92
  6. Step 6: Final answer
    x = 8,934.60

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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.