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Finding the Fourth Proportional to 22,235.80, 33,356.90 and 7,445.40

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Solution

The fourth proportional to 22,235.80, 33,356.90 and 7,445.40 is: 11,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.80 : 33,356.90 = 7,445.40 : x
  2. Step 2: Convert to fraction form
    22,235.80/33,356.90 = 7,445.40/x
  3. Step 3: Cross multiply
    22,235.80x = 33,356.90 × 7,445.40
  4. Step 4: Simplify right side
    22,235.80x = 248,355,463.26
  5. Step 5: Solve for x
    x = 248,355,463.26/22,235.80
  6. Step 6: Final answer
    x = 11,169.17

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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.