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Finding the Fourth Proportional to 18,455,873.70, 27,683,810.55 and 17,559,067.02

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Solution

The fourth proportional to 18,455,873.70, 27,683,810.55 and 17,559,067.02 is: 26,338,600.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455,873.70 : 27,683,810.55 = 17,559,067.02 : x
  2. Step 2: Convert to fraction form
    18,455,873.70/27,683,810.55 = 17,559,067.02/x
  3. Step 3: Cross multiply
    18,455,873.70x = 27,683,810.55 × 17,559,067.02
  4. Step 4: Simplify right side
    18,455,873.70x = 486,101,884,816,433.06
  5. Step 5: Solve for x
    x = 486,101,884,816,433.06/18,455,873.70
  6. Step 6: Final answer
    x = 26,338,600.53

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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.