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Finding the Fourth Proportional to 35,615.69, 49,146.35 and 19,699.80

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Solution

The fourth proportional to 35,615.69, 49,146.35 and 19,699.80 is: 27,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.69 : 49,146.35 = 19,699.80 : x
  2. Step 2: Convert to fraction form
    35,615.69/49,146.35 = 19,699.80/x
  3. Step 3: Cross multiply
    35,615.69x = 49,146.35 × 19,699.80
  4. Step 4: Simplify right side
    35,615.69x = 968,173,265.73
  5. Step 5: Solve for x
    x = 968,173,265.73/35,615.69
  6. Step 6: Final answer
    x = 27,183.90

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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.