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Finding the Fourth Proportional to 63,980.69, 88,297.36 and 35,686.31

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Solution

The fourth proportional to 63,980.69, 88,297.36 and 35,686.31 is: 49,249.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,980.69 : 88,297.36 = 35,686.31 : x
  2. Step 2: Convert to fraction form
    63,980.69/88,297.36 = 35,686.31/x
  3. Step 3: Cross multiply
    63,980.69x = 88,297.36 × 35,686.31
  4. Step 4: Simplify right side
    63,980.69x = 3,151,006,430.44
  5. Step 5: Solve for x
    x = 3,151,006,430.44/63,980.69
  6. Step 6: Final answer
    x = 49,249.34

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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.