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Finding the Fourth Proportional to 55,611.16, 83,416.03 and 13,491.56

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Solution

The fourth proportional to 55,611.16, 83,416.03 and 13,491.56 is: 20,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,611.16 : 83,416.03 = 13,491.56 : x
  2. Step 2: Convert to fraction form
    55,611.16/83,416.03 = 13,491.56/x
  3. Step 3: Cross multiply
    55,611.16x = 83,416.03 × 13,491.56
  4. Step 4: Simplify right side
    55,611.16x = 1,125,412,548.52
  5. Step 5: Solve for x
    x = 1,125,412,548.52/55,611.16
  6. Step 6: Final answer
    x = 20,237.17

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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.