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Finding the Fourth Proportional to 66,467.50, 99,720.06 and 27,052.90

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Solution

The fourth proportional to 66,467.50, 99,720.06 and 27,052.90 is: 40,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.50 : 99,720.06 = 27,052.90 : x
  2. Step 2: Convert to fraction form
    66,467.50/99,720.06 = 27,052.90/x
  3. Step 3: Cross multiply
    66,467.50x = 99,720.06 × 27,052.90
  4. Step 4: Simplify right side
    66,467.50x = 2,697,716,811.17
  5. Step 5: Solve for x
    x = 2,697,716,811.17/66,467.50
  6. Step 6: Final answer
    x = 40,587.01

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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.