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Finding the Fourth Proportional to 17,802.74, 26,720.16 and 9,489.68

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Solution

The fourth proportional to 17,802.74, 26,720.16 and 9,489.68 is: 14,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,802.74 : 26,720.16 = 9,489.68 : x
  2. Step 2: Convert to fraction form
    17,802.74/26,720.16 = 9,489.68/x
  3. Step 3: Cross multiply
    17,802.74x = 26,720.16 × 9,489.68
  4. Step 4: Simplify right side
    17,802.74x = 253,565,767.95
  5. Step 5: Solve for x
    x = 253,565,767.95/17,802.74
  6. Step 6: Final answer
    x = 14,243.08

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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.