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Finding the Fourth Proportional to 22,009.18, 32,999.18 and 7,212.92

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Solution

The fourth proportional to 22,009.18, 32,999.18 and 7,212.92 is: 10,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,009.18 : 32,999.18 = 7,212.92 : x
  2. Step 2: Convert to fraction form
    22,009.18/32,999.18 = 7,212.92/x
  3. Step 3: Cross multiply
    22,009.18x = 32,999.18 × 7,212.92
  4. Step 4: Simplify right side
    22,009.18x = 238,020,445.41
  5. Step 5: Solve for x
    x = 238,020,445.41/22,009.18
  6. Step 6: Final answer
    x = 10,814.60

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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.