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Finding the Fourth Proportional to 63,694.76, 87,899.85 and 35,400.51

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Solution

The fourth proportional to 63,694.76, 87,899.85 and 35,400.51 is: 48,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,694.76 : 87,899.85 = 35,400.51 : x
  2. Step 2: Convert to fraction form
    63,694.76/87,899.85 = 35,400.51/x
  3. Step 3: Cross multiply
    63,694.76x = 87,899.85 × 35,400.51
  4. Step 4: Simplify right side
    63,694.76x = 3,111,699,518.92
  5. Step 5: Solve for x
    x = 3,111,699,518.92/63,694.76
  6. Step 6: Final answer
    x = 48,853.31

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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.