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Finding the Fourth Proportional to 53,509.80, 80,269.50 and 14,066.28

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Solution

The fourth proportional to 53,509.80, 80,269.50 and 14,066.28 is: 21,100.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,509.80 : 80,269.50 = 14,066.28 : x
  2. Step 2: Convert to fraction form
    53,509.80/80,269.50 = 14,066.28/x
  3. Step 3: Cross multiply
    53,509.80x = 80,269.50 × 14,066.28
  4. Step 4: Simplify right side
    53,509.80x = 1,129,093,262.46
  5. Step 5: Solve for x
    x = 1,129,093,262.46/53,509.80
  6. Step 6: Final answer
    x = 21,100.68

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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.