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Finding the Fourth Proportional to 28,815.40, 43,224.06 and 8,037.16

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Solution

The fourth proportional to 28,815.40, 43,224.06 and 8,037.16 is: 12,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.40 : 43,224.06 = 8,037.16 : x
  2. Step 2: Convert to fraction form
    28,815.40/43,224.06 = 8,037.16/x
  3. Step 3: Cross multiply
    28,815.40x = 43,224.06 × 8,037.16
  4. Step 4: Simplify right side
    28,815.40x = 347,398,686.07
  5. Step 5: Solve for x
    x = 347,398,686.07/28,815.40
  6. Step 6: Final answer
    x = 12,056.01

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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.