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Finding the Fourth Proportional to 35,515.80, 53,236.80 and 14,446.80

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Solution

The fourth proportional to 35,515.80, 53,236.80 and 14,446.80 is: 21,655.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.80 : 53,236.80 = 14,446.80 : x
  2. Step 2: Convert to fraction form
    35,515.80/53,236.80 = 14,446.80/x
  3. Step 3: Cross multiply
    35,515.80x = 53,236.80 × 14,446.80
  4. Step 4: Simplify right side
    35,515.80x = 769,101,402.24
  5. Step 5: Solve for x
    x = 769,101,402.24/35,515.80
  6. Step 6: Final answer
    x = 21,655.19

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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.