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Finding the Fourth Proportional to 61,286.63, 84,566.34 and 34,423.99

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Solution

The fourth proportional to 61,286.63, 84,566.34 and 34,423.99 is: 47,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,286.63 : 84,566.34 = 34,423.99 : x
  2. Step 2: Convert to fraction form
    61,286.63/84,566.34 = 34,423.99/x
  3. Step 3: Cross multiply
    61,286.63x = 84,566.34 × 34,423.99
  4. Step 4: Simplify right side
    61,286.63x = 2,911,110,842.50
  5. Step 5: Solve for x
    x = 2,911,110,842.50/61,286.63
  6. Step 6: Final answer
    x = 47,499.93

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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.