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Finding the Fourth Proportional to 17,957.60, 26,940.28 and 5,477.30

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Solution

The fourth proportional to 17,957.60, 26,940.28 and 5,477.30 is: 8,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.60 : 26,940.28 = 5,477.30 : x
  2. Step 2: Convert to fraction form
    17,957.60/26,940.28 = 5,477.30/x
  3. Step 3: Cross multiply
    17,957.60x = 26,940.28 × 5,477.30
  4. Step 4: Simplify right side
    17,957.60x = 147,559,995.64
  5. Step 5: Solve for x
    x = 147,559,995.64/17,957.60
  6. Step 6: Final answer
    x = 8,217.13

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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.