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Finding the Fourth Proportional to 36,689.60, 55,041.32 and 16,700.64

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Solution

The fourth proportional to 36,689.60, 55,041.32 and 16,700.64 is: 25,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.60 : 55,041.32 = 16,700.64 : x
  2. Step 2: Convert to fraction form
    36,689.60/55,041.32 = 16,700.64/x
  3. Step 3: Cross multiply
    36,689.60x = 55,041.32 × 16,700.64
  4. Step 4: Simplify right side
    36,689.60x = 919,225,270.44
  5. Step 5: Solve for x
    x = 919,225,270.44/36,689.60
  6. Step 6: Final answer
    x = 25,054.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.