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Finding the Fourth Proportional to 61,472.91, 84,840.71 and 34,620.67

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Solution

The fourth proportional to 61,472.91, 84,840.71 and 34,620.67 is: 47,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,472.91 : 84,840.71 = 34,620.67 : x
  2. Step 2: Convert to fraction form
    61,472.91/84,840.71 = 34,620.67/x
  3. Step 3: Cross multiply
    61,472.91x = 84,840.71 × 34,620.67
  4. Step 4: Simplify right side
    61,472.91x = 2,937,242,156.42
  5. Step 5: Solve for x
    x = 2,937,242,156.42/61,472.91
  6. Step 6: Final answer
    x = 47,781.08

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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.