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Finding the Fourth Proportional to 17,998.40, 26,999.88 and 6,154.45

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Solution

The fourth proportional to 17,998.40, 26,999.88 and 6,154.45 is: 9,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.40 : 26,999.88 = 6,154.45 : x
  2. Step 2: Convert to fraction form
    17,998.40/26,999.88 = 6,154.45/x
  3. Step 3: Cross multiply
    17,998.40x = 26,999.88 × 6,154.45
  4. Step 4: Simplify right side
    17,998.40x = 166,169,355.51
  5. Step 5: Solve for x
    x = 166,169,355.51/17,998.40
  6. Step 6: Final answer
    x = 9,232.45

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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.