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Finding the Fourth Proportional to 61,813.72, 85,307.64 and 34,956.76

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Solution

The fourth proportional to 61,813.72, 85,307.64 and 34,956.76 is: 48,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,813.72 : 85,307.64 = 34,956.76 : x
  2. Step 2: Convert to fraction form
    61,813.72/85,307.64 = 34,956.76/x
  3. Step 3: Cross multiply
    61,813.72x = 85,307.64 × 34,956.76
  4. Step 4: Simplify right side
    61,813.72x = 2,982,078,697.65
  5. Step 5: Solve for x
    x = 2,982,078,697.65/61,813.72
  6. Step 6: Final answer
    x = 48,242.99

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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.