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Finding the Fourth Proportional to 9,777.51, 13,488.93 and 5,797.17

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Solution

The fourth proportional to 9,777.51, 13,488.93 and 5,797.17 is: 7,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,777.51 : 13,488.93 = 5,797.17 : x
  2. Step 2: Convert to fraction form
    9,777.51/13,488.93 = 5,797.17/x
  3. Step 3: Cross multiply
    9,777.51x = 13,488.93 × 5,797.17
  4. Step 4: Simplify right side
    9,777.51x = 78,197,620.33
  5. Step 5: Solve for x
    x = 78,197,620.33/9,777.51
  6. Step 6: Final answer
    x = 7,997.70

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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.