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Finding the Fourth Proportional to 36,935.64, 55,403.40 and 10,640.40

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Solution

The fourth proportional to 36,935.64, 55,403.40 and 10,640.40 is: 15,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,935.64 : 55,403.40 = 10,640.40 : x
  2. Step 2: Convert to fraction form
    36,935.64/55,403.40 = 10,640.40/x
  3. Step 3: Cross multiply
    36,935.64x = 55,403.40 × 10,640.40
  4. Step 4: Simplify right side
    36,935.64x = 589,514,337.36
  5. Step 5: Solve for x
    x = 589,514,337.36/36,935.64
  6. Step 6: Final answer
    x = 15,960.58

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1.5x scale

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.