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Finding the Fourth Proportional to 56,100.60, 77,416.56 and 30,949.56

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Solution

The fourth proportional to 56,100.60, 77,416.56 and 30,949.56 is: 42,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,100.60 : 77,416.56 = 30,949.56 : x
  2. Step 2: Convert to fraction form
    56,100.60/77,416.56 = 30,949.56/x
  3. Step 3: Cross multiply
    56,100.60x = 77,416.56 × 30,949.56
  4. Step 4: Simplify right side
    56,100.60x = 2,396,008,468.71
  5. Step 5: Solve for x
    x = 2,396,008,468.71/56,100.60
  6. Step 6: Final answer
    x = 42,709.14

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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.