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Finding the Fourth Proportional to 8,009.97, 11,055.74 and 4,868.79

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Solution

The fourth proportional to 8,009.97, 11,055.74 and 4,868.79 is: 6,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.97 : 11,055.74 = 4,868.79 : x
  2. Step 2: Convert to fraction form
    8,009.97/11,055.74 = 4,868.79/x
  3. Step 3: Cross multiply
    8,009.97x = 11,055.74 × 4,868.79
  4. Step 4: Simplify right side
    8,009.97x = 53,828,052.01
  5. Step 5: Solve for x
    x = 53,828,052.01/8,009.97
  6. Step 6: Final answer
    x = 6,720.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.