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Finding the Fourth Proportional to 53,969.39, 80,947.76 and 14,523.40

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Solution

The fourth proportional to 53,969.39, 80,947.76 and 14,523.40 is: 21,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,969.39 : 80,947.76 = 14,523.40 : x
  2. Step 2: Convert to fraction form
    53,969.39/80,947.76 = 14,523.40/x
  3. Step 3: Cross multiply
    53,969.39x = 80,947.76 × 14,523.40
  4. Step 4: Simplify right side
    53,969.39x = 1,175,636,292.85
  5. Step 5: Solve for x
    x = 1,175,636,292.85/53,969.39
  6. Step 6: Final answer
    x = 21,783.39

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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.