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Finding the Fourth Proportional to 66,816.85, 92,203.96 and 36,602.30

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Solution

The fourth proportional to 66,816.85, 92,203.96 and 36,602.30 is: 50,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816.85 : 92,203.96 = 36,602.30 : x
  2. Step 2: Convert to fraction form
    66,816.85/92,203.96 = 36,602.30/x
  3. Step 3: Cross multiply
    66,816.85x = 92,203.96 × 36,602.30
  4. Step 4: Simplify right side
    66,816.85x = 3,374,877,005.11
  5. Step 5: Solve for x
    x = 3,374,877,005.11/66,816.85
  6. Step 6: Final answer
    x = 50,509.37

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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.