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Finding the Fourth Proportional to 63,707.63, 87,918.35 and 35,415.14

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Solution

The fourth proportional to 63,707.63, 87,918.35 and 35,415.14 is: 48,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,707.63 : 87,918.35 = 35,415.14 : x
  2. Step 2: Convert to fraction form
    63,707.63/87,918.35 = 35,415.14/x
  3. Step 3: Cross multiply
    63,707.63x = 87,918.35 × 35,415.14
  4. Step 4: Simplify right side
    63,707.63x = 3,113,640,057.15
  5. Step 5: Solve for x
    x = 3,113,640,057.15/63,707.63
  6. Step 6: Final answer
    x = 48,873.90

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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.