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Finding the Fourth Proportional to 61,800.30, 85,201.92 and 49,095.66

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Solution

The fourth proportional to 61,800.30, 85,201.92 and 49,095.66 is: 67,686.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,800.30 : 85,201.92 = 49,095.66 : x
  2. Step 2: Convert to fraction form
    61,800.30/85,201.92 = 49,095.66/x
  3. Step 3: Cross multiply
    61,800.30x = 85,201.92 × 49,095.66
  4. Step 4: Simplify right side
    61,800.30x = 4,183,044,495.67
  5. Step 5: Solve for x
    x = 4,183,044,495.67/61,800.30
  6. Step 6: Final answer
    x = 67,686.48

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1.5x scale

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.