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Finding the Fourth Proportional to 62,798.78, 86,663.30 and 34,119.01

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Solution

The fourth proportional to 62,798.78, 86,663.30 and 34,119.01 is: 47,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,798.78 : 86,663.30 = 34,119.01 : x
  2. Step 2: Convert to fraction form
    62,798.78/86,663.30 = 34,119.01/x
  3. Step 3: Cross multiply
    62,798.78x = 86,663.30 × 34,119.01
  4. Step 4: Simplify right side
    62,798.78x = 2,956,865,752.34
  5. Step 5: Solve for x
    x = 2,956,865,752.34/62,798.78
  6. Step 6: Final answer
    x = 47,084.77

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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.