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Finding the Fourth Proportional to 11,666.58, 17,498.79 and 4,270.74

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Solution

The fourth proportional to 11,666.58, 17,498.79 and 4,270.74 is: 6,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,666.58 : 17,498.79 = 4,270.74 : x
  2. Step 2: Convert to fraction form
    11,666.58/17,498.79 = 4,270.74/x
  3. Step 3: Cross multiply
    11,666.58x = 17,498.79 × 4,270.74
  4. Step 4: Simplify right side
    11,666.58x = 74,732,782.40
  5. Step 5: Solve for x
    x = 74,732,782.40/11,666.58
  6. Step 6: Final answer
    x = 6,405.71

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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.