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Finding the Fourth Proportional to 17,118.93, 25,689.40 and 8,349.06

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Solution

The fourth proportional to 17,118.93, 25,689.40 and 8,349.06 is: 12,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,118.93 : 25,689.40 = 8,349.06 : x
  2. Step 2: Convert to fraction form
    17,118.93/25,689.40 = 8,349.06/x
  3. Step 3: Cross multiply
    17,118.93x = 25,689.40 × 8,349.06
  4. Step 4: Simplify right side
    17,118.93x = 214,482,341.96
  5. Step 5: Solve for x
    x = 214,482,341.96/17,118.93
  6. Step 6: Final answer
    x = 12,528.96

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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.