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Finding the Fourth Proportional to 15,313.71, 22,971.03 and 4,220.58

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Solution

The fourth proportional to 15,313.71, 22,971.03 and 4,220.58 is: 6,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.71 : 22,971.03 = 4,220.58 : x
  2. Step 2: Convert to fraction form
    15,313.71/22,971.03 = 4,220.58/x
  3. Step 3: Cross multiply
    15,313.71x = 22,971.03 × 4,220.58
  4. Step 4: Simplify right side
    15,313.71x = 96,951,069.80
  5. Step 5: Solve for x
    x = 96,951,069.80/15,313.71
  6. Step 6: Final answer
    x = 6,331.00

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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.