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Finding the Fourth Proportional to 17,808.40, 26,712.60 and 11,263.60

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Solution

The fourth proportional to 17,808.40, 26,712.60 and 11,263.60 is: 16,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808.40 : 26,712.60 = 11,263.60 : x
  2. Step 2: Convert to fraction form
    17,808.40/26,712.60 = 11,263.60/x
  3. Step 3: Cross multiply
    17,808.40x = 26,712.60 × 11,263.60
  4. Step 4: Simplify right side
    17,808.40x = 300,880,041.36
  5. Step 5: Solve for x
    x = 300,880,041.36/17,808.40
  6. Step 6: Final answer
    x = 16,895.40

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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.