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Finding the Fourth Proportional to 55,528.70, 83,242.64 and 28,843.49

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Solution

The fourth proportional to 55,528.70, 83,242.64 and 28,843.49 is: 43,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,528.70 : 83,242.64 = 28,843.49 : x
  2. Step 2: Convert to fraction form
    55,528.70/83,242.64 = 28,843.49/x
  3. Step 3: Cross multiply
    55,528.70x = 83,242.64 × 28,843.49
  4. Step 4: Simplify right side
    55,528.70x = 2,401,008,534.63
  5. Step 5: Solve for x
    x = 2,401,008,534.63/55,528.70
  6. Step 6: Final answer
    x = 43,239.06

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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.