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Finding the Fourth Proportional to 66,999.60, 92,461.92 and 36,784.66

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Solution

The fourth proportional to 66,999.60, 92,461.92 and 36,784.66 is: 50,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999.60 : 92,461.92 = 36,784.66 : x
  2. Step 2: Convert to fraction form
    66,999.60/92,461.92 = 36,784.66/x
  3. Step 3: Cross multiply
    66,999.60x = 92,461.92 × 36,784.66
  4. Step 4: Simplify right side
    66,999.60x = 3,401,179,886.10
  5. Step 5: Solve for x
    x = 3,401,179,886.10/66,999.60
  6. Step 6: Final answer
    x = 50,764.18

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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.