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Finding the Fourth Proportional to 66,599.48, 91,905.72 and 36,384.96

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Solution

The fourth proportional to 66,599.48, 91,905.72 and 36,384.96 is: 50,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.48 : 91,905.72 = 36,384.96 : x
  2. Step 2: Convert to fraction form
    66,599.48/91,905.72 = 36,384.96/x
  3. Step 3: Cross multiply
    66,599.48x = 91,905.72 × 36,384.96
  4. Step 4: Simplify right side
    66,599.48x = 3,343,985,945.97
  5. Step 5: Solve for x
    x = 3,343,985,945.97/66,599.48
  6. Step 6: Final answer
    x = 50,210.39

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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.