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Finding the Fourth Proportional to 10,448.60, 15,672.90 and 9,606.20

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Solution

The fourth proportional to 10,448.60, 15,672.90 and 9,606.20 is: 14,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.60 : 15,672.90 = 9,606.20 : x
  2. Step 2: Convert to fraction form
    10,448.60/15,672.90 = 9,606.20/x
  3. Step 3: Cross multiply
    10,448.60x = 15,672.90 × 9,606.20
  4. Step 4: Simplify right side
    10,448.60x = 150,557,011.98
  5. Step 5: Solve for x
    x = 150,557,011.98/10,448.60
  6. Step 6: Final answer
    x = 14,409.30

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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.