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Finding the Fourth Proportional to 5,579.79, 7,700.09 and 3,061.94

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Solution

The fourth proportional to 5,579.79, 7,700.09 and 3,061.94 is: 4,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.79 : 7,700.09 = 3,061.94 : x
  2. Step 2: Convert to fraction form
    5,579.79/7,700.09 = 3,061.94/x
  3. Step 3: Cross multiply
    5,579.79x = 7,700.09 × 3,061.94
  4. Step 4: Simplify right side
    5,579.79x = 23,577,215.54
  5. Step 5: Solve for x
    x = 23,577,215.54/5,579.79
  6. Step 6: Final answer
    x = 4,225.47

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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.