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Finding the Fourth Proportional to 17,405.94, 26,067.15 and 9,987.96

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Solution

The fourth proportional to 17,405.94, 26,067.15 and 9,987.96 is: 14,957.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,405.94 : 26,067.15 = 9,987.96 : x
  2. Step 2: Convert to fraction form
    17,405.94/26,067.15 = 9,987.96/x
  3. Step 3: Cross multiply
    17,405.94x = 26,067.15 × 9,987.96
  4. Step 4: Simplify right side
    17,405.94x = 260,357,651.51
  5. Step 5: Solve for x
    x = 260,357,651.51/17,405.94
  6. Step 6: Final answer
    x = 14,957.98

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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.