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Finding the Fourth Proportional to 18,365,447.60, 27,547,296.60 and 6,233,721.20

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Solution

The fourth proportional to 18,365,447.60, 27,547,296.60 and 6,233,721.20 is: 9,350,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365,447.60 : 27,547,296.60 = 6,233,721.20 : x
  2. Step 2: Convert to fraction form
    18,365,447.60/27,547,296.60 = 6,233,721.20/x
  3. Step 3: Cross multiply
    18,365,447.60x = 27,547,296.60 × 6,233,721.20
  4. Step 4: Simplify right side
    18,365,447.60x = 171,722,166,818,107.94
  5. Step 5: Solve for x
    x = 171,722,166,818,107.94/18,365,447.60
  6. Step 6: Final answer
    x = 9,350,284.87

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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.