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Finding the Fourth Proportional to 28,425.02, 42,641.42 and 9,700.02

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Solution

The fourth proportional to 28,425.02, 42,641.42 and 9,700.02 is: 14,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.02 : 42,641.42 = 9,700.02 : x
  2. Step 2: Convert to fraction form
    28,425.02/42,641.42 = 9,700.02/x
  3. Step 3: Cross multiply
    28,425.02x = 42,641.42 × 9,700.02
  4. Step 4: Simplify right side
    28,425.02x = 413,622,626.83
  5. Step 5: Solve for x
    x = 413,622,626.83/28,425.02
  6. Step 6: Final answer
    x = 14,551.36

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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.