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Finding the Fourth Proportional to 7,756.65, 10,700.24 and 5,069.45

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Solution

The fourth proportional to 7,756.65, 10,700.24 and 5,069.45 is: 6,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.65 : 10,700.24 = 5,069.45 : x
  2. Step 2: Convert to fraction form
    7,756.65/10,700.24 = 5,069.45/x
  3. Step 3: Cross multiply
    7,756.65x = 10,700.24 × 5,069.45
  4. Step 4: Simplify right side
    7,756.65x = 54,244,252.82
  5. Step 5: Solve for x
    x = 54,244,252.82/7,756.65
  6. Step 6: Final answer
    x = 6,993.26

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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.