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Finding the Fourth Proportional to 28,600.97, 42,903.08 and 9,617.98

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Solution

The fourth proportional to 28,600.97, 42,903.08 and 9,617.98 is: 14,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.97 : 42,903.08 = 9,617.98 : x
  2. Step 2: Convert to fraction form
    28,600.97/42,903.08 = 9,617.98/x
  3. Step 3: Cross multiply
    28,600.97x = 42,903.08 × 9,617.98
  4. Step 4: Simplify right side
    28,600.97x = 412,641,060.73
  5. Step 5: Solve for x
    x = 412,641,060.73/28,600.97
  6. Step 6: Final answer
    x = 14,427.52

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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.