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Finding the Fourth Proportional to 15,969.40, 22,037.34 and 8,895.40

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Solution

The fourth proportional to 15,969.40, 22,037.34 and 8,895.40 is: 12,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.40 : 22,037.34 = 8,895.40 : x
  2. Step 2: Convert to fraction form
    15,969.40/22,037.34 = 8,895.40/x
  3. Step 3: Cross multiply
    15,969.40x = 22,037.34 × 8,895.40
  4. Step 4: Simplify right side
    15,969.40x = 196,030,954.24
  5. Step 5: Solve for x
    x = 196,030,954.24/15,969.40
  6. Step 6: Final answer
    x = 12,275.41

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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.