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Finding the Fourth Proportional to 17,730.76, 26,606.22 and 6,645.16

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Solution

The fourth proportional to 17,730.76, 26,606.22 and 6,645.16 is: 9,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,730.76 : 26,606.22 = 6,645.16 : x
  2. Step 2: Convert to fraction form
    17,730.76/26,606.22 = 6,645.16/x
  3. Step 3: Cross multiply
    17,730.76x = 26,606.22 × 6,645.16
  4. Step 4: Simplify right side
    17,730.76x = 176,802,588.90
  5. Step 5: Solve for x
    x = 176,802,588.90/17,730.76
  6. Step 6: Final answer
    x = 9,971.52

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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.