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Finding the Fourth Proportional to 11,666.76, 17,489.56 and 4,651.60

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Solution

The fourth proportional to 11,666.76, 17,489.56 and 4,651.60 is: 6,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.76 : 17,489.56 = 4,651.60 : x
  2. Step 2: Convert to fraction form
    11,666.76/17,489.56 = 4,651.60/x
  3. Step 3: Cross multiply
    11,666.76x = 17,489.56 × 4,651.60
  4. Step 4: Simplify right side
    11,666.76x = 81,354,437.30
  5. Step 5: Solve for x
    x = 81,354,437.30/11,666.76
  6. Step 6: Final answer
    x = 6,973.18

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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.