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Finding the Fourth Proportional to 61,697.34, 85,140.86 and 34,838.96

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Solution

The fourth proportional to 61,697.34, 85,140.86 and 34,838.96 is: 48,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.34 : 85,140.86 = 34,838.96 : x
  2. Step 2: Convert to fraction form
    61,697.34/85,140.86 = 34,838.96/x
  3. Step 3: Cross multiply
    61,697.34x = 85,140.86 × 34,838.96
  4. Step 4: Simplify right side
    61,697.34x = 2,966,218,416.01
  5. Step 5: Solve for x
    x = 2,966,218,416.01/61,697.34
  6. Step 6: Final answer
    x = 48,076.93

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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.