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Finding the Fourth Proportional to 11,873.16, 17,809.54 and 4,851.64

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Solution

The fourth proportional to 11,873.16, 17,809.54 and 4,851.64 is: 7,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.16 : 17,809.54 = 4,851.64 : x
  2. Step 2: Convert to fraction form
    11,873.16/17,809.54 = 4,851.64/x
  3. Step 3: Cross multiply
    11,873.16x = 17,809.54 × 4,851.64
  4. Step 4: Simplify right side
    11,873.16x = 86,405,476.65
  5. Step 5: Solve for x
    x = 86,405,476.65/11,873.16
  6. Step 6: Final answer
    x = 7,277.38

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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.