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Finding the Fourth Proportional to 17,070.66, 25,609.68 and 9,678.60

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Solution

The fourth proportional to 17,070.66, 25,609.68 and 9,678.60 is: 14,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,070.66 : 25,609.68 = 9,678.60 : x
  2. Step 2: Convert to fraction form
    17,070.66/25,609.68 = 9,678.60/x
  3. Step 3: Cross multiply
    17,070.66x = 25,609.68 × 9,678.60
  4. Step 4: Simplify right side
    17,070.66x = 247,865,848.85
  5. Step 5: Solve for x
    x = 247,865,848.85/17,070.66
  6. Step 6: Final answer
    x = 14,519.99

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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.