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Finding the Fourth Proportional to 35,478.71, 48,960.96 and 19,563.74

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Solution

The fourth proportional to 35,478.71, 48,960.96 and 19,563.74 is: 26,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.71 : 48,960.96 = 19,563.74 : x
  2. Step 2: Convert to fraction form
    35,478.71/48,960.96 = 19,563.74/x
  3. Step 3: Cross multiply
    35,478.71x = 48,960.96 × 19,563.74
  4. Step 4: Simplify right side
    35,478.71x = 957,859,491.59
  5. Step 5: Solve for x
    x = 957,859,491.59/35,478.71
  6. Step 6: Final answer
    x = 26,998.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.