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Finding the Fourth Proportional to 66,172.61, 99,259.22 and 16,252.72

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Solution

The fourth proportional to 66,172.61, 99,259.22 and 16,252.72 is: 24,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172.61 : 99,259.22 = 16,252.72 : x
  2. Step 2: Convert to fraction form
    66,172.61/99,259.22 = 16,252.72/x
  3. Step 3: Cross multiply
    66,172.61x = 99,259.22 × 16,252.72
  4. Step 4: Simplify right side
    66,172.61x = 1,613,232,102.56
  5. Step 5: Solve for x
    x = 1,613,232,102.56/66,172.61
  6. Step 6: Final answer
    x = 24,379.15

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1.5x scale

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.