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Finding the Fourth Proportional to 61,435.76, 84,772.13 and 34,576.67

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Solution

The fourth proportional to 61,435.76, 84,772.13 and 34,576.67 is: 47,710.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,435.76 : 84,772.13 = 34,576.67 : x
  2. Step 2: Convert to fraction form
    61,435.76/84,772.13 = 34,576.67/x
  3. Step 3: Cross multiply
    61,435.76x = 84,772.13 × 34,576.67
  4. Step 4: Simplify right side
    61,435.76x = 2,931,138,262.58
  5. Step 5: Solve for x
    x = 2,931,138,262.58/61,435.76
  6. Step 6: Final answer
    x = 47,710.62

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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.