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Finding the Fourth Proportional to 19,658,648.74, 27,122,923.60 and 11,397,062.60

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Solution

The fourth proportional to 19,658,648.74, 27,122,923.60 and 11,397,062.60 is: 15,724,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658,648.74 : 27,122,923.60 = 11,397,062.60 : x
  2. Step 2: Convert to fraction form
    19,658,648.74/27,122,923.60 = 11,397,062.60/x
  3. Step 3: Cross multiply
    19,658,648.74x = 27,122,923.60 × 11,397,062.60
  4. Step 4: Simplify right side
    19,658,648.74x = 309,121,658,164,217.38
  5. Step 5: Solve for x
    x = 309,121,658,164,217.38/19,658,648.74
  6. Step 6: Final answer
    x = 15,724,461.14

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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.