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Finding the Fourth Proportional to 10,948.60, 16,398.60 and 9,490.60

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Solution

The fourth proportional to 10,948.60, 16,398.60 and 9,490.60 is: 14,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.60 : 16,398.60 = 9,490.60 : x
  2. Step 2: Convert to fraction form
    10,948.60/16,398.60 = 9,490.60/x
  3. Step 3: Cross multiply
    10,948.60x = 16,398.60 × 9,490.60
  4. Step 4: Simplify right side
    10,948.60x = 155,632,553.16
  5. Step 5: Solve for x
    x = 155,632,553.16/10,948.60
  6. Step 6: Final answer
    x = 14,214.84

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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.