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Finding the Fourth Proportional to 7,798.91, 10,761.98 and 4,262.13

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Solution

The fourth proportional to 7,798.91, 10,761.98 and 4,262.13 is: 5,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.91 : 10,761.98 = 4,262.13 : x
  2. Step 2: Convert to fraction form
    7,798.91/10,761.98 = 4,262.13/x
  3. Step 3: Cross multiply
    7,798.91x = 10,761.98 × 4,262.13
  4. Step 4: Simplify right side
    7,798.91x = 45,868,936.51
  5. Step 5: Solve for x
    x = 45,868,936.51/7,798.91
  6. Step 6: Final answer
    x = 5,881.46

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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.