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Finding the Fourth Proportional to 17,439.77, 26,159.08 and 7,579.06

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Solution

The fourth proportional to 17,439.77, 26,159.08 and 7,579.06 is: 11,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,439.77 : 26,159.08 = 7,579.06 : x
  2. Step 2: Convert to fraction form
    17,439.77/26,159.08 = 7,579.06/x
  3. Step 3: Cross multiply
    17,439.77x = 26,159.08 × 7,579.06
  4. Step 4: Simplify right side
    17,439.77x = 198,261,163.81
  5. Step 5: Solve for x
    x = 198,261,163.81/17,439.77
  6. Step 6: Final answer
    x = 11,368.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.