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Finding the Fourth Proportional to 65,875.96, 98,827.71 and 21,505.24

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Solution

The fourth proportional to 65,875.96, 98,827.71 and 21,505.24 is: 32,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.96 : 98,827.71 = 21,505.24 : x
  2. Step 2: Convert to fraction form
    65,875.96/98,827.71 = 21,505.24/x
  3. Step 3: Cross multiply
    65,875.96x = 98,827.71 × 21,505.24
  4. Step 4: Simplify right side
    65,875.96x = 2,125,313,622.20
  5. Step 5: Solve for x
    x = 2,125,313,622.20/65,875.96
  6. Step 6: Final answer
    x = 32,262.36

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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.