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Finding the Fourth Proportional to 22,472,993.60, 33,709,490.40 and 21,728,976.20

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Solution

The fourth proportional to 22,472,993.60, 33,709,490.40 and 21,728,976.20 is: 32,593,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472,993.60 : 33,709,490.40 = 21,728,976.20 : x
  2. Step 2: Convert to fraction form
    22,472,993.60/33,709,490.40 = 21,728,976.20/x
  3. Step 3: Cross multiply
    22,472,993.60x = 33,709,490.40 × 21,728,976.20
  4. Step 4: Simplify right side
    22,472,993.60x = 732,472,714,615,728.38
  5. Step 5: Solve for x
    x = 732,472,714,615,728.38/22,472,993.60
  6. Step 6: Final answer
    x = 32,593,464.30

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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.