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Finding the Fourth Proportional to 11,666.70, 17,508.96 and 8,554.95

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Solution

The fourth proportional to 11,666.70, 17,508.96 and 8,554.95 is: 12,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.70 : 17,508.96 = 8,554.95 : x
  2. Step 2: Convert to fraction form
    11,666.70/17,508.96 = 8,554.95/x
  3. Step 3: Cross multiply
    11,666.70x = 17,508.96 × 8,554.95
  4. Step 4: Simplify right side
    11,666.70x = 149,788,277.35
  5. Step 5: Solve for x
    x = 149,788,277.35/11,666.70
  6. Step 6: Final answer
    x = 12,838.96

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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.