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Finding the Fourth Proportional to 15,849.36, 23,776.74 and 7,955.64

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Solution

The fourth proportional to 15,849.36, 23,776.74 and 7,955.64 is: 11,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.36 : 23,776.74 = 7,955.64 : x
  2. Step 2: Convert to fraction form
    15,849.36/23,776.74 = 7,955.64/x
  3. Step 3: Cross multiply
    15,849.36x = 23,776.74 × 7,955.64
  4. Step 4: Simplify right side
    15,849.36x = 189,159,183.81
  5. Step 5: Solve for x
    x = 189,159,183.81/15,849.36
  6. Step 6: Final answer
    x = 11,934.82

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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.