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Finding the Fourth Proportional to 15,969.24, 22,038.48 and 8,895.84

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Solution

The fourth proportional to 15,969.24, 22,038.48 and 8,895.84 is: 12,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.24 : 22,038.48 = 8,895.84 : x
  2. Step 2: Convert to fraction form
    15,969.24/22,038.48 = 8,895.84/x
  3. Step 3: Cross multiply
    15,969.24x = 22,038.48 × 8,895.84
  4. Step 4: Simplify right side
    15,969.24x = 196,050,791.92
  5. Step 5: Solve for x
    x = 196,050,791.92/15,969.24
  6. Step 6: Final answer
    x = 12,276.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.