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Finding the Fourth Proportional to 27,480.50, 37,923.09 and 15,543.58

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Solution

The fourth proportional to 27,480.50, 37,923.09 and 15,543.58 is: 21,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,480.50 : 37,923.09 = 15,543.58 : x
  2. Step 2: Convert to fraction form
    27,480.50/37,923.09 = 15,543.58/x
  3. Step 3: Cross multiply
    27,480.50x = 37,923.09 × 15,543.58
  4. Step 4: Simplify right side
    27,480.50x = 589,460,583.26
  5. Step 5: Solve for x
    x = 589,460,583.26/27,480.50
  6. Step 6: Final answer
    x = 21,450.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.