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Finding the Fourth Proportional to 11,869,709.60, 17,804,564.40 and 10,771,398.20

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Solution

The fourth proportional to 11,869,709.60, 17,804,564.40 and 10,771,398.20 is: 16,157,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869,709.60 : 17,804,564.40 = 10,771,398.20 : x
  2. Step 2: Convert to fraction form
    11,869,709.60/17,804,564.40 = 10,771,398.20/x
  3. Step 3: Cross multiply
    11,869,709.60x = 17,804,564.40 × 10,771,398.20
  4. Step 4: Simplify right side
    11,869,709.60x = 191,780,052,929,944.06
  5. Step 5: Solve for x
    x = 191,780,052,929,944.06/11,869,709.60
  6. Step 6: Final answer
    x = 16,157,097.30

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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.