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Finding the Fourth Proportional to 42,674.60, 63,935.10 and 36,530.60

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Solution

The fourth proportional to 42,674.60, 63,935.10 and 36,530.60 is: 54,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,674.60 : 63,935.10 = 36,530.60 : x
  2. Step 2: Convert to fraction form
    42,674.60/63,935.10 = 36,530.60/x
  3. Step 3: Cross multiply
    42,674.60x = 63,935.10 × 36,530.60
  4. Step 4: Simplify right side
    42,674.60x = 2,335,587,564.06
  5. Step 5: Solve for x
    x = 2,335,587,564.06/42,674.60
  6. Step 6: Final answer
    x = 54,730.16

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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.