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Finding the Fourth Proportional to 22,071.92, 33,111.95 and 7,281.86

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Solution

The fourth proportional to 22,071.92, 33,111.95 and 7,281.86 is: 10,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,071.92 : 33,111.95 = 7,281.86 : x
  2. Step 2: Convert to fraction form
    22,071.92/33,111.95 = 7,281.86/x
  3. Step 3: Cross multiply
    22,071.92x = 33,111.95 × 7,281.86
  4. Step 4: Simplify right side
    22,071.92x = 241,116,382.26
  5. Step 5: Solve for x
    x = 241,116,382.26/22,071.92
  6. Step 6: Final answer
    x = 10,924.13

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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.