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Finding the Fourth Proportional to 70,857.98, 106,288.56 and 26,460.51

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Solution

The fourth proportional to 70,857.98, 106,288.56 and 26,460.51 is: 39,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,857.98 : 106,288.56 = 26,460.51 : x
  2. Step 2: Convert to fraction form
    70,857.98/106,288.56 = 26,460.51/x
  3. Step 3: Cross multiply
    70,857.98x = 106,288.56 × 26,460.51
  4. Step 4: Simplify right side
    70,857.98x = 2,812,449,504.77
  5. Step 5: Solve for x
    x = 2,812,449,504.77/70,857.98
  6. Step 6: Final answer
    x = 39,691.36

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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.