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Finding the Fourth Proportional to 66,597.36, 91,904.01 and 36,384.41

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Solution

The fourth proportional to 66,597.36, 91,904.01 and 36,384.41 is: 50,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,597.36 : 91,904.01 = 36,384.41 : x
  2. Step 2: Convert to fraction form
    66,597.36/91,904.01 = 36,384.41/x
  3. Step 3: Cross multiply
    66,597.36x = 91,904.01 × 36,384.41
  4. Step 4: Simplify right side
    66,597.36x = 3,343,872,720.96
  5. Step 5: Solve for x
    x = 3,343,872,720.96/66,597.36
  6. Step 6: Final answer
    x = 50,210.29

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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.