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Finding the Fourth Proportional to 7,993.51, 11,026.06 and 5,159.79

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Solution

The fourth proportional to 7,993.51, 11,026.06 and 5,159.79 is: 7,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.51 : 11,026.06 = 5,159.79 : x
  2. Step 2: Convert to fraction form
    7,993.51/11,026.06 = 5,159.79/x
  3. Step 3: Cross multiply
    7,993.51x = 11,026.06 × 5,159.79
  4. Step 4: Simplify right side
    7,993.51x = 56,892,141.23
  5. Step 5: Solve for x
    x = 56,892,141.23/7,993.51
  6. Step 6: Final answer
    x = 7,117.29

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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.