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Finding the Fourth Proportional to 30,371.76, 45,541.44 and 15,574.68

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Solution

The fourth proportional to 30,371.76, 45,541.44 and 15,574.68 is: 23,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.76 : 45,541.44 = 15,574.68 : x
  2. Step 2: Convert to fraction form
    30,371.76/45,541.44 = 15,574.68/x
  3. Step 3: Cross multiply
    30,371.76x = 45,541.44 × 15,574.68
  4. Step 4: Simplify right side
    30,371.76x = 709,293,354.74
  5. Step 5: Solve for x
    x = 709,293,354.74/30,371.76
  6. Step 6: Final answer
    x = 23,353.71

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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.