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Finding the Fourth Proportional to 32,420.68, 48,631.03 and 16,805.50

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Solution

The fourth proportional to 32,420.68, 48,631.03 and 16,805.50 is: 25,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.68 : 48,631.03 = 16,805.50 : x
  2. Step 2: Convert to fraction form
    32,420.68/48,631.03 = 16,805.50/x
  3. Step 3: Cross multiply
    32,420.68x = 48,631.03 × 16,805.50
  4. Step 4: Simplify right side
    32,420.68x = 817,268,774.67
  5. Step 5: Solve for x
    x = 817,268,774.67/32,420.68
  6. Step 6: Final answer
    x = 25,208.26

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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.