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Finding the Fourth Proportional to 36,700,369.90, 50,646,568.71 and 20,402,845.90

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Solution

The fourth proportional to 36,700,369.90, 50,646,568.71 and 20,402,845.90 is: 28,155,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700,369.90 : 50,646,568.71 = 20,402,845.90 : x
  2. Step 2: Convert to fraction form
    36,700,369.90/50,646,568.71 = 20,402,845.90/x
  3. Step 3: Cross multiply
    36,700,369.90x = 50,646,568.71 × 20,402,845.90
  4. Step 4: Simplify right side
    36,700,369.90x = 1,033,334,136,753,891.75
  5. Step 5: Solve for x
    x = 1,033,334,136,753,891.75/36,700,369.90
  6. Step 6: Final answer
    x = 28,155,959.72

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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.