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Finding the Fourth Proportional to 6,899,173.71, 9,451,901.73 and 6,640,592.43

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Solution

The fourth proportional to 6,899,173.71, 9,451,901.73 and 6,640,592.43 is: 9,097,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899,173.71 : 9,451,901.73 = 6,640,592.43 : x
  2. Step 2: Convert to fraction form
    6,899,173.71/9,451,901.73 = 6,640,592.43/x
  3. Step 3: Cross multiply
    6,899,173.71x = 9,451,901.73 × 6,640,592.43
  4. Step 4: Simplify right side
    6,899,173.71x = 62,766,227,077,341.91
  5. Step 5: Solve for x
    x = 62,766,227,077,341.91/6,899,173.71
  6. Step 6: Final answer
    x = 9,097,644.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.