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Finding the Fourth Proportional to 19,480.21, 29,213.02 and 15,368.65

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Solution

The fourth proportional to 19,480.21, 29,213.02 and 15,368.65 is: 23,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.21 : 29,213.02 = 15,368.65 : x
  2. Step 2: Convert to fraction form
    19,480.21/29,213.02 = 15,368.65/x
  3. Step 3: Cross multiply
    19,480.21x = 29,213.02 × 15,368.65
  4. Step 4: Simplify right side
    19,480.21x = 448,964,568.37
  5. Step 5: Solve for x
    x = 448,964,568.37/19,480.21
  6. Step 6: Final answer
    x = 23,047.22

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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.