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Finding the Fourth Proportional to 26,892.40, 40,338.60 and 19,116.40

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Solution

The fourth proportional to 26,892.40, 40,338.60 and 19,116.40 is: 28,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,892.40 : 40,338.60 = 19,116.40 : x
  2. Step 2: Convert to fraction form
    26,892.40/40,338.60 = 19,116.40/x
  3. Step 3: Cross multiply
    26,892.40x = 40,338.60 × 19,116.40
  4. Step 4: Simplify right side
    26,892.40x = 771,128,813.04
  5. Step 5: Solve for x
    x = 771,128,813.04/26,892.40
  6. Step 6: Final answer
    x = 28,674.60

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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.