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Finding the Fourth Proportional to 61,388.74, 84,717.65 and 35,897.38

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Solution

The fourth proportional to 61,388.74, 84,717.65 and 35,897.38 is: 49,539.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,388.74 : 84,717.65 = 35,897.38 : x
  2. Step 2: Convert to fraction form
    61,388.74/84,717.65 = 35,897.38/x
  3. Step 3: Cross multiply
    61,388.74x = 84,717.65 × 35,897.38
  4. Step 4: Simplify right side
    61,388.74x = 3,041,141,674.76
  5. Step 5: Solve for x
    x = 3,041,141,674.76/61,388.74
  6. Step 6: Final answer
    x = 49,539.08

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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.