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Finding the Fourth Proportional to 53,940.60, 80,910.90 and 14,501.70

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Solution

The fourth proportional to 53,940.60, 80,910.90 and 14,501.70 is: 21,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,940.60 : 80,910.90 = 14,501.70 : x
  2. Step 2: Convert to fraction form
    53,940.60/80,910.90 = 14,501.70/x
  3. Step 3: Cross multiply
    53,940.60x = 80,910.90 × 14,501.70
  4. Step 4: Simplify right side
    53,940.60x = 1,173,345,598.53
  5. Step 5: Solve for x
    x = 1,173,345,598.53/53,940.60
  6. Step 6: Final answer
    x = 21,752.55

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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.