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Finding the Fourth Proportional to 70,490.93, 105,736.68 and 17,900.24

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Solution

The fourth proportional to 70,490.93, 105,736.68 and 17,900.24 is: 26,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,490.93 : 105,736.68 = 17,900.24 : x
  2. Step 2: Convert to fraction form
    70,490.93/105,736.68 = 17,900.24/x
  3. Step 3: Cross multiply
    70,490.93x = 105,736.68 × 17,900.24
  4. Step 4: Simplify right side
    70,490.93x = 1,892,711,420.12
  5. Step 5: Solve for x
    x = 1,892,711,420.12/70,490.93
  6. Step 6: Final answer
    x = 26,850.43

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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.