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Finding the Fourth Proportional to 22,159.60, 33,230.60 and 7,364.40

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Solution

The fourth proportional to 22,159.60, 33,230.60 and 7,364.40 is: 11,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.60 : 33,230.60 = 7,364.40 : x
  2. Step 2: Convert to fraction form
    22,159.60/33,230.60 = 7,364.40/x
  3. Step 3: Cross multiply
    22,159.60x = 33,230.60 × 7,364.40
  4. Step 4: Simplify right side
    22,159.60x = 244,723,430.64
  5. Step 5: Solve for x
    x = 244,723,430.64/22,159.60
  6. Step 6: Final answer
    x = 11,043.68

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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.