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Finding the Fourth Proportional to 35,755.83, 49,343.07 and 19,840.28

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Solution

The fourth proportional to 35,755.83, 49,343.07 and 19,840.28 is: 27,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,755.83 : 49,343.07 = 19,840.28 : x
  2. Step 2: Convert to fraction form
    35,755.83/49,343.07 = 19,840.28/x
  3. Step 3: Cross multiply
    35,755.83x = 49,343.07 × 19,840.28
  4. Step 4: Simplify right side
    35,755.83x = 978,980,152.55
  5. Step 5: Solve for x
    x = 978,980,152.55/35,755.83
  6. Step 6: Final answer
    x = 27,379.60

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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.