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Finding the Fourth Proportional to 21,703.40, 32,555.11 and 7,849.16

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Solution

The fourth proportional to 21,703.40, 32,555.11 and 7,849.16 is: 11,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.40 : 32,555.11 = 7,849.16 : x
  2. Step 2: Convert to fraction form
    21,703.40/32,555.11 = 7,849.16/x
  3. Step 3: Cross multiply
    21,703.40x = 32,555.11 × 7,849.16
  4. Step 4: Simplify right side
    21,703.40x = 255,530,267.21
  5. Step 5: Solve for x
    x = 255,530,267.21/21,703.40
  6. Step 6: Final answer
    x = 11,773.74

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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.