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Finding the Fourth Proportional to 7,057.86, 9,739.91 and 4,073.11

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Solution

The fourth proportional to 7,057.86, 9,739.91 and 4,073.11 is: 5,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,057.86 : 9,739.91 = 4,073.11 : x
  2. Step 2: Convert to fraction form
    7,057.86/9,739.91 = 4,073.11/x
  3. Step 3: Cross multiply
    7,057.86x = 9,739.91 × 4,073.11
  4. Step 4: Simplify right side
    7,057.86x = 39,671,710.65
  5. Step 5: Solve for x
    x = 39,671,710.65/7,057.86
  6. Step 6: Final answer
    x = 5,620.93

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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.