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Finding the Fourth Proportional to 22,356.70, 33,522.90 and 9,210.40

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Solution

The fourth proportional to 22,356.70, 33,522.90 and 9,210.40 is: 13,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356.70 : 33,522.90 = 9,210.40 : x
  2. Step 2: Convert to fraction form
    22,356.70/33,522.90 = 9,210.40/x
  3. Step 3: Cross multiply
    22,356.70x = 33,522.90 × 9,210.40
  4. Step 4: Simplify right side
    22,356.70x = 308,759,318.16
  5. Step 5: Solve for x
    x = 308,759,318.16/22,356.70
  6. Step 6: Final answer
    x = 13,810.59

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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.