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Finding the Fourth Proportional to 7,061.11, 9,736.36 and 5,780.99

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Solution

The fourth proportional to 7,061.11, 9,736.36 and 5,780.99 is: 7,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,061.11 : 9,736.36 = 5,780.99 : x
  2. Step 2: Convert to fraction form
    7,061.11/9,736.36 = 5,780.99/x
  3. Step 3: Cross multiply
    7,061.11x = 9,736.36 × 5,780.99
  4. Step 4: Simplify right side
    7,061.11x = 56,285,809.68
  5. Step 5: Solve for x
    x = 56,285,809.68/7,061.11
  6. Step 6: Final answer
    x = 7,971.24

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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.