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Finding the Fourth Proportional to 55,642.24, 83,476.08 and 18,706.24

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Solution

The fourth proportional to 55,642.24, 83,476.08 and 18,706.24 is: 28,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.24 : 83,476.08 = 18,706.24 : x
  2. Step 2: Convert to fraction form
    55,642.24/83,476.08 = 18,706.24/x
  3. Step 3: Cross multiply
    55,642.24x = 83,476.08 × 18,706.24
  4. Step 4: Simplify right side
    55,642.24x = 1,561,523,586.74
  5. Step 5: Solve for x
    x = 1,561,523,586.74/55,642.24
  6. Step 6: Final answer
    x = 28,063.64

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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.