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Finding the Fourth Proportional to 10,595.80, 15,893.70 and 8,906.20

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Solution

The fourth proportional to 10,595.80, 15,893.70 and 8,906.20 is: 13,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,595.80 : 15,893.70 = 8,906.20 : x
  2. Step 2: Convert to fraction form
    10,595.80/15,893.70 = 8,906.20/x
  3. Step 3: Cross multiply
    10,595.80x = 15,893.70 × 8,906.20
  4. Step 4: Simplify right side
    10,595.80x = 141,552,470.94
  5. Step 5: Solve for x
    x = 141,552,470.94/10,595.80
  6. Step 6: Final answer
    x = 13,359.30

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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.