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Finding the Fourth Proportional to 5,055.63, 6,975.12 and 2,817.08

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Solution

The fourth proportional to 5,055.63, 6,975.12 and 2,817.08 is: 3,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.63 : 6,975.12 = 2,817.08 : x
  2. Step 2: Convert to fraction form
    5,055.63/6,975.12 = 2,817.08/x
  3. Step 3: Cross multiply
    5,055.63x = 6,975.12 × 2,817.08
  4. Step 4: Simplify right side
    5,055.63x = 19,649,471.05
  5. Step 5: Solve for x
    x = 19,649,471.05/5,055.63
  6. Step 6: Final answer
    x = 3,886.65

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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.