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Finding the Fourth Proportional to 9,952.79, 14,811.70 and 9,620.64

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Solution

The fourth proportional to 9,952.79, 14,811.70 and 9,620.64 is: 14,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,952.79 : 14,811.70 = 9,620.64 : x
  2. Step 2: Convert to fraction form
    9,952.79/14,811.70 = 9,620.64/x
  3. Step 3: Cross multiply
    9,952.79x = 14,811.70 × 9,620.64
  4. Step 4: Simplify right side
    9,952.79x = 142,497,911.33
  5. Step 5: Solve for x
    x = 142,497,911.33/9,952.79
  6. Step 6: Final answer
    x = 14,317.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.