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Finding the Fourth Proportional to 21,797.94, 32,707.96 and 9,950.40

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Solution

The fourth proportional to 21,797.94, 32,707.96 and 9,950.40 is: 14,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.94 : 32,707.96 = 9,950.40 : x
  2. Step 2: Convert to fraction form
    21,797.94/32,707.96 = 9,950.40/x
  3. Step 3: Cross multiply
    21,797.94x = 32,707.96 × 9,950.40
  4. Step 4: Simplify right side
    21,797.94x = 325,457,285.18
  5. Step 5: Solve for x
    x = 325,457,285.18/21,797.94
  6. Step 6: Final answer
    x = 14,930.64

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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.