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Finding the Fourth Proportional to 7,798.65, 10,762.77 and 4,442.51

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Solution

The fourth proportional to 7,798.65, 10,762.77 and 4,442.51 is: 6,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.65 : 10,762.77 = 4,442.51 : x
  2. Step 2: Convert to fraction form
    7,798.65/10,762.77 = 4,442.51/x
  3. Step 3: Cross multiply
    7,798.65x = 10,762.77 × 4,442.51
  4. Step 4: Simplify right side
    7,798.65x = 47,813,713.35
  5. Step 5: Solve for x
    x = 47,813,713.35/7,798.65
  6. Step 6: Final answer
    x = 6,131.03

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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.