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Finding the Fourth Proportional to 18,232,978.64, 25,136,887.02 and 11,695,258.04

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Solution

The fourth proportional to 18,232,978.64, 25,136,887.02 and 11,695,258.04 is: 16,123,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232,978.64 : 25,136,887.02 = 11,695,258.04 : x
  2. Step 2: Convert to fraction form
    18,232,978.64/25,136,887.02 = 11,695,258.04/x
  3. Step 3: Cross multiply
    18,232,978.64x = 25,136,887.02 × 11,695,258.04
  4. Step 4: Simplify right side
    18,232,978.64x = 293,982,380,021,226.62
  5. Step 5: Solve for x
    x = 293,982,380,021,226.62/18,232,978.64
  6. Step 6: Final answer
    x = 16,123,661.74

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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.