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Finding the Fourth Proportional to 8,857,224.94, 12,223,873.48 and 5,421,736.30

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Solution

The fourth proportional to 8,857,224.94, 12,223,873.48 and 5,421,736.30 is: 7,482,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857,224.94 : 12,223,873.48 = 5,421,736.30 : x
  2. Step 2: Convert to fraction form
    8,857,224.94/12,223,873.48 = 5,421,736.30/x
  3. Step 3: Cross multiply
    8,857,224.94x = 12,223,873.48 × 5,421,736.30
  4. Step 4: Simplify right side
    8,857,224.94x = 66,274,618,573,123.32
  5. Step 5: Solve for x
    x = 66,274,618,573,123.32/8,857,224.94
  6. Step 6: Final answer
    x = 7,482,548.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.