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Finding the Fourth Proportional to 17,958.56, 26,925.33 and 7,957.88

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Solution

The fourth proportional to 17,958.56, 26,925.33 and 7,957.88 is: 11,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.56 : 26,925.33 = 7,957.88 : x
  2. Step 2: Convert to fraction form
    17,958.56/26,925.33 = 7,957.88/x
  3. Step 3: Cross multiply
    17,958.56x = 26,925.33 × 7,957.88
  4. Step 4: Simplify right side
    17,958.56x = 214,268,541.29
  5. Step 5: Solve for x
    x = 214,268,541.29/17,958.56
  6. Step 6: Final answer
    x = 11,931.28

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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.