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Finding the Fourth Proportional to 40,358.70, 60,529.95 and 19,298.70

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Solution

The fourth proportional to 40,358.70, 60,529.95 and 19,298.70 is: 28,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,358.70 : 60,529.95 = 19,298.70 : x
  2. Step 2: Convert to fraction form
    40,358.70/60,529.95 = 19,298.70/x
  3. Step 3: Cross multiply
    40,358.70x = 60,529.95 × 19,298.70
  4. Step 4: Simplify right side
    40,358.70x = 1,168,149,346.07
  5. Step 5: Solve for x
    x = 1,168,149,346.07/40,358.70
  6. Step 6: Final answer
    x = 28,944.18

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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.