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Finding the Fourth Proportional to 35,489.34, 53,168.40 and 17,917.20

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Solution

The fourth proportional to 35,489.34, 53,168.40 and 17,917.20 is: 26,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.34 : 53,168.40 = 17,917.20 : x
  2. Step 2: Convert to fraction form
    35,489.34/53,168.40 = 17,917.20/x
  3. Step 3: Cross multiply
    35,489.34x = 53,168.40 × 17,917.20
  4. Step 4: Simplify right side
    35,489.34x = 952,628,856.48
  5. Step 5: Solve for x
    x = 952,628,856.48/35,489.34
  6. Step 6: Final answer
    x = 26,842.68

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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.