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Finding the Fourth Proportional to 36,903.63, 50,926.73 and 20,988.06

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Solution

The fourth proportional to 36,903.63, 50,926.73 and 20,988.06 is: 28,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,903.63 : 50,926.73 = 20,988.06 : x
  2. Step 2: Convert to fraction form
    36,903.63/50,926.73 = 20,988.06/x
  3. Step 3: Cross multiply
    36,903.63x = 50,926.73 × 20,988.06
  4. Step 4: Simplify right side
    36,903.63x = 1,068,853,062.68
  5. Step 5: Solve for x
    x = 1,068,853,062.68/36,903.63
  6. Step 6: Final answer
    x = 28,963.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.