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Finding the Fourth Proportional to 7,798.86, 10,762.74 and 4,262.22

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Solution

The fourth proportional to 7,798.86, 10,762.74 and 4,262.22 is: 5,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.86 : 10,762.74 = 4,262.22 : x
  2. Step 2: Convert to fraction form
    7,798.86/10,762.74 = 4,262.22/x
  3. Step 3: Cross multiply
    7,798.86x = 10,762.74 × 4,262.22
  4. Step 4: Simplify right side
    7,798.86x = 45,873,165.68
  5. Step 5: Solve for x
    x = 45,873,165.68/7,798.86
  6. Step 6: Final answer
    x = 5,882.03

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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.