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Finding the Fourth Proportional to 22,140.71, 33,203.84 and 7,345.65

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Solution

The fourth proportional to 22,140.71, 33,203.84 and 7,345.65 is: 11,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.71 : 33,203.84 = 7,345.65 : x
  2. Step 2: Convert to fraction form
    22,140.71/33,203.84 = 7,345.65/x
  3. Step 3: Cross multiply
    22,140.71x = 33,203.84 × 7,345.65
  4. Step 4: Simplify right side
    22,140.71x = 243,903,916.40
  5. Step 5: Solve for x
    x = 243,903,916.40/22,140.71
  6. Step 6: Final answer
    x = 11,016.08

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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.