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Finding the Fourth Proportional to 48,345.40, 72,530.90 and 17,177.40

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Solution

The fourth proportional to 48,345.40, 72,530.90 and 17,177.40 is: 25,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,345.40 : 72,530.90 = 17,177.40 : x
  2. Step 2: Convert to fraction form
    48,345.40/72,530.90 = 17,177.40/x
  3. Step 3: Cross multiply
    48,345.40x = 72,530.90 × 17,177.40
  4. Step 4: Simplify right side
    48,345.40x = 1,245,892,281.66
  5. Step 5: Solve for x
    x = 1,245,892,281.66/48,345.40
  6. Step 6: Final answer
    x = 25,770.65

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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.