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Finding the Fourth Proportional to 29,355,655.60, 43,891,765.80 and 21,702,905.20

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Solution

The fourth proportional to 29,355,655.60, 43,891,765.80 and 21,702,905.20 is: 32,449,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,355,655.60 : 43,891,765.80 = 21,702,905.20 : x
  2. Step 2: Convert to fraction form
    29,355,655.60/43,891,765.80 = 21,702,905.20/x
  3. Step 3: Cross multiply
    29,355,655.60x = 43,891,765.80 × 21,702,905.20
  4. Step 4: Simplify right side
    29,355,655.60x = 952,578,832,218,002.12
  5. Step 5: Solve for x
    x = 952,578,832,218,002.12/29,355,655.60
  6. Step 6: Final answer
    x = 32,449,584.68

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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.