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Finding the Fourth Proportional to 30,580.71, 45,877.97 and 10,859.28

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Solution

The fourth proportional to 30,580.71, 45,877.97 and 10,859.28 is: 16,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,580.71 : 45,877.97 = 10,859.28 : x
  2. Step 2: Convert to fraction form
    30,580.71/45,877.97 = 10,859.28/x
  3. Step 3: Cross multiply
    30,580.71x = 45,877.97 × 10,859.28
  4. Step 4: Simplify right side
    30,580.71x = 498,201,438.38
  5. Step 5: Solve for x
    x = 498,201,438.38/30,580.71
  6. Step 6: Final answer
    x = 16,291.37

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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.