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Finding the Fourth Proportional to 56,383.40, 84,356.40 and 36,700.40

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Solution

The fourth proportional to 56,383.40, 84,356.40 and 36,700.40 is: 54,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,383.40 : 84,356.40 = 36,700.40 : x
  2. Step 2: Convert to fraction form
    56,383.40/84,356.40 = 36,700.40/x
  3. Step 3: Cross multiply
    56,383.40x = 84,356.40 × 36,700.40
  4. Step 4: Simplify right side
    56,383.40x = 3,095,913,622.56
  5. Step 5: Solve for x
    x = 3,095,913,622.56/56,383.40
  6. Step 6: Final answer
    x = 54,908.25

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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.