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Finding the Fourth Proportional to 66,460.94, 99,701.39 and 21,467.27

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Solution

The fourth proportional to 66,460.94, 99,701.39 and 21,467.27 is: 32,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,460.94 : 99,701.39 = 21,467.27 : x
  2. Step 2: Convert to fraction form
    66,460.94/99,701.39 = 21,467.27/x
  3. Step 3: Cross multiply
    66,460.94x = 99,701.39 × 21,467.27
  4. Step 4: Simplify right side
    66,460.94x = 2,140,316,551.17
  5. Step 5: Solve for x
    x = 2,140,316,551.17/66,460.94
  6. Step 6: Final answer
    x = 32,204.13

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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.