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Finding the Fourth Proportional to 36,707.87, 50,666.87 and 21,605.38

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Solution

The fourth proportional to 36,707.87, 50,666.87 and 21,605.38 is: 29,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,707.87 : 50,666.87 = 21,605.38 : x
  2. Step 2: Convert to fraction form
    36,707.87/50,666.87 = 21,605.38/x
  3. Step 3: Cross multiply
    36,707.87x = 50,666.87 × 21,605.38
  4. Step 4: Simplify right side
    36,707.87x = 1,094,676,979.76
  5. Step 5: Solve for x
    x = 1,094,676,979.76/36,707.87
  6. Step 6: Final answer
    x = 29,821.32

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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.