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Finding the Fourth Proportional to 71,698.44, 107,399.70 and 42,026.16

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Solution

The fourth proportional to 71,698.44, 107,399.70 and 42,026.16 is: 62,952.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,698.44 : 107,399.70 = 42,026.16 : x
  2. Step 2: Convert to fraction form
    71,698.44/107,399.70 = 42,026.16/x
  3. Step 3: Cross multiply
    71,698.44x = 107,399.70 × 42,026.16
  4. Step 4: Simplify right side
    71,698.44x = 4,513,596,976.15
  5. Step 5: Solve for x
    x = 4,513,596,976.15/71,698.44
  6. Step 6: Final answer
    x = 62,952.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.