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Finding the Fourth Proportional to 55,638.87, 83,463.44 and 18,199.16

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Solution

The fourth proportional to 55,638.87, 83,463.44 and 18,199.16 is: 27,300.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638.87 : 83,463.44 = 18,199.16 : x
  2. Step 2: Convert to fraction form
    55,638.87/83,463.44 = 18,199.16/x
  3. Step 3: Cross multiply
    55,638.87x = 83,463.44 × 18,199.16
  4. Step 4: Simplify right side
    55,638.87x = 1,518,964,126.89
  5. Step 5: Solve for x
    x = 1,518,964,126.89/55,638.87
  6. Step 6: Final answer
    x = 27,300.41

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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.