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Finding the Fourth Proportional to 17,666.55, 26,503.47 and 7,675.61

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Solution

The fourth proportional to 17,666.55, 26,503.47 and 7,675.61 is: 11,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,666.55 : 26,503.47 = 7,675.61 : x
  2. Step 2: Convert to fraction form
    17,666.55/26,503.47 = 7,675.61/x
  3. Step 3: Cross multiply
    17,666.55x = 26,503.47 × 7,675.61
  4. Step 4: Simplify right side
    17,666.55x = 203,430,166.85
  5. Step 5: Solve for x
    x = 203,430,166.85/17,666.55
  6. Step 6: Final answer
    x = 11,514.99

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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.