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Finding the Fourth Proportional to 53,563.70, 80,345.55 and 14,124.80

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Solution

The fourth proportional to 53,563.70, 80,345.55 and 14,124.80 is: 21,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,563.70 : 80,345.55 = 14,124.80 : x
  2. Step 2: Convert to fraction form
    53,563.70/80,345.55 = 14,124.80/x
  3. Step 3: Cross multiply
    53,563.70x = 80,345.55 × 14,124.80
  4. Step 4: Simplify right side
    53,563.70x = 1,134,864,824.64
  5. Step 5: Solve for x
    x = 1,134,864,824.64/53,563.70
  6. Step 6: Final answer
    x = 21,187.20

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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.