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Finding the Fourth Proportional to 7,794.96, 10,756.65 and 4,257.51

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Solution

The fourth proportional to 7,794.96, 10,756.65 and 4,257.51 is: 5,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.96 : 10,756.65 = 4,257.51 : x
  2. Step 2: Convert to fraction form
    7,794.96/10,756.65 = 4,257.51/x
  3. Step 3: Cross multiply
    7,794.96x = 10,756.65 × 4,257.51
  4. Step 4: Simplify right side
    7,794.96x = 45,796,544.94
  5. Step 5: Solve for x
    x = 45,796,544.94/7,794.96
  6. Step 6: Final answer
    x = 5,875.15

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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.