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Finding the Fourth Proportional to 30,295.91, 45,464.62 and 10,574.47

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Solution

The fourth proportional to 30,295.91, 45,464.62 and 10,574.47 is: 15,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.91 : 45,464.62 = 10,574.47 : x
  2. Step 2: Convert to fraction form
    30,295.91/45,464.62 = 10,574.47/x
  3. Step 3: Cross multiply
    30,295.91x = 45,464.62 × 10,574.47
  4. Step 4: Simplify right side
    30,295.91x = 480,764,260.25
  5. Step 5: Solve for x
    x = 480,764,260.25/30,295.91
  6. Step 6: Final answer
    x = 15,868.95

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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.