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Finding the Fourth Proportional to 61,579.66, 84,980.88 and 36,079.92

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Solution

The fourth proportional to 61,579.66, 84,980.88 and 36,079.92 is: 49,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,579.66 : 84,980.88 = 36,079.92 : x
  2. Step 2: Convert to fraction form
    61,579.66/84,980.88 = 36,079.92/x
  3. Step 3: Cross multiply
    61,579.66x = 84,980.88 × 36,079.92
  4. Step 4: Simplify right side
    61,579.66x = 3,066,103,602.96
  5. Step 5: Solve for x
    x = 3,066,103,602.96/61,579.66
  6. Step 6: Final answer
    x = 49,790.85

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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.