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Finding the Fourth Proportional to 28,096.44, 42,131.06 and 8,368.04

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Solution

The fourth proportional to 28,096.44, 42,131.06 and 8,368.04 is: 12,548.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.44 : 42,131.06 = 8,368.04 : x
  2. Step 2: Convert to fraction form
    28,096.44/42,131.06 = 8,368.04/x
  3. Step 3: Cross multiply
    28,096.44x = 42,131.06 × 8,368.04
  4. Step 4: Simplify right side
    28,096.44x = 352,554,395.32
  5. Step 5: Solve for x
    x = 352,554,395.32/28,096.44
  6. Step 6: Final answer
    x = 12,548.01

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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.