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Finding the Fourth Proportional to 21,707.40, 32,562.06 and 6,917.40

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Solution

The fourth proportional to 21,707.40, 32,562.06 and 6,917.40 is: 10,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.40 : 32,562.06 = 6,917.40 : x
  2. Step 2: Convert to fraction form
    21,707.40/32,562.06 = 6,917.40/x
  3. Step 3: Cross multiply
    21,707.40x = 32,562.06 × 6,917.40
  4. Step 4: Simplify right side
    21,707.40x = 225,244,793.84
  5. Step 5: Solve for x
    x = 225,244,793.84/21,707.40
  6. Step 6: Final answer
    x = 10,376.41

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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.