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Finding the Fourth Proportional to 67,783.50, 101,690.14 and 27,802.72

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Solution

The fourth proportional to 67,783.50, 101,690.14 and 27,802.72 is: 41,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,783.50 : 101,690.14 = 27,802.72 : x
  2. Step 2: Convert to fraction form
    67,783.50/101,690.14 = 27,802.72/x
  3. Step 3: Cross multiply
    67,783.50x = 101,690.14 × 27,802.72
  4. Step 4: Simplify right side
    67,783.50x = 2,827,262,489.18
  5. Step 5: Solve for x
    x = 2,827,262,489.18/67,783.50
  6. Step 6: Final answer
    x = 41,710.19

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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.