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Finding the Fourth Proportional to 6,235,687.44, 8,605,974.72 and 5,187,256.56

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Solution

The fourth proportional to 6,235,687.44, 8,605,974.72 and 5,187,256.56 is: 7,159,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,235,687.44 : 8,605,974.72 = 5,187,256.56 : x
  2. Step 2: Convert to fraction form
    6,235,687.44/8,605,974.72 = 5,187,256.56/x
  3. Step 3: Cross multiply
    6,235,687.44x = 8,605,974.72 × 5,187,256.56
  4. Step 4: Simplify right side
    6,235,687.44x = 44,641,398,821,514.16
  5. Step 5: Solve for x
    x = 44,641,398,821,514.16/6,235,687.44
  6. Step 6: Final answer
    x = 7,159,018.03

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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.