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Finding the Fourth Proportional to 7,643.59, 10,552.76 and 4,995.43

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Solution

The fourth proportional to 7,643.59, 10,552.76 and 4,995.43 is: 6,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.59 : 10,552.76 = 4,995.43 : x
  2. Step 2: Convert to fraction form
    7,643.59/10,552.76 = 4,995.43/x
  3. Step 3: Cross multiply
    7,643.59x = 10,552.76 × 4,995.43
  4. Step 4: Simplify right side
    7,643.59x = 52,715,548.91
  5. Step 5: Solve for x
    x = 52,715,548.91/7,643.59
  6. Step 6: Final answer
    x = 6,896.70

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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.