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Finding the Fourth Proportional to 9,866.75, 14,798.48 and 2,939.63

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Solution

The fourth proportional to 9,866.75, 14,798.48 and 2,939.63 is: 4,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.75 : 14,798.48 = 2,939.63 : x
  2. Step 2: Convert to fraction form
    9,866.75/14,798.48 = 2,939.63/x
  3. Step 3: Cross multiply
    9,866.75x = 14,798.48 × 2,939.63
  4. Step 4: Simplify right side
    9,866.75x = 43,501,967.07
  5. Step 5: Solve for x
    x = 43,501,967.07/9,866.75
  6. Step 6: Final answer
    x = 4,408.95

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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.