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Finding the Fourth Proportional to 61,347.72, 84,654 and 35,860.05

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Solution

The fourth proportional to 61,347.72, 84,654 and 35,860.05 is: 49,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.72 : 84,654 = 35,860.05 : x
  2. Step 2: Convert to fraction form
    61,347.72/84,654 = 35,860.05/x
  3. Step 3: Cross multiply
    61,347.72x = 84,654 × 35,860.05
  4. Step 4: Simplify right side
    61,347.72x = 3,035,696,672.70
  5. Step 5: Solve for x
    x = 3,035,696,672.70/61,347.72
  6. Step 6: Final answer
    x = 49,483.45

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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.