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Finding the Fourth Proportional to 17,615.18, 26,415.09 and 6,663.50

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Solution

The fourth proportional to 17,615.18, 26,415.09 and 6,663.50 is: 9,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.18 : 26,415.09 = 6,663.50 : x
  2. Step 2: Convert to fraction form
    17,615.18/26,415.09 = 6,663.50/x
  3. Step 3: Cross multiply
    17,615.18x = 26,415.09 × 6,663.50
  4. Step 4: Simplify right side
    17,615.18x = 176,016,952.22
  5. Step 5: Solve for x
    x = 176,016,952.22/17,615.18
  6. Step 6: Final answer
    x = 9,992.34

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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.