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Finding the Fourth Proportional to 18,602,551.91, 27,902,023.70 and 5,648,814.71

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Solution

The fourth proportional to 18,602,551.91, 27,902,023.70 and 5,648,814.71 is: 8,472,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602,551.91 : 27,902,023.70 = 5,648,814.71 : x
  2. Step 2: Convert to fraction form
    18,602,551.91/27,902,023.70 = 5,648,814.71/x
  3. Step 3: Cross multiply
    18,602,551.91x = 27,902,023.70 × 5,648,814.71
  4. Step 4: Simplify right side
    18,602,551.91x = 157,613,361,852,207.03
  5. Step 5: Solve for x
    x = 157,613,361,852,207.03/18,602,551.91
  6. Step 6: Final answer
    x = 8,472,674.21

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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.