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Finding the Fourth Proportional to 17,686.71, 26,530.08 and 4,539.09

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Solution

The fourth proportional to 17,686.71, 26,530.08 and 4,539.09 is: 6,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.71 : 26,530.08 = 4,539.09 : x
  2. Step 2: Convert to fraction form
    17,686.71/26,530.08 = 4,539.09/x
  3. Step 3: Cross multiply
    17,686.71x = 26,530.08 × 4,539.09
  4. Step 4: Simplify right side
    17,686.71x = 120,422,420.83
  5. Step 5: Solve for x
    x = 120,422,420.83/17,686.71
  6. Step 6: Final answer
    x = 6,808.64

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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.