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Finding the Fourth Proportional to 5,775.79, 8,653.09 and 5,153.17

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Solution

The fourth proportional to 5,775.79, 8,653.09 and 5,153.17 is: 7,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.79 : 8,653.09 = 5,153.17 : x
  2. Step 2: Convert to fraction form
    5,775.79/8,653.09 = 5,153.17/x
  3. Step 3: Cross multiply
    5,775.79x = 8,653.09 × 5,153.17
  4. Step 4: Simplify right side
    5,775.79x = 44,590,843.80
  5. Step 5: Solve for x
    x = 44,590,843.80/5,775.79
  6. Step 6: Final answer
    x = 7,720.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.