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Finding the Fourth Proportional to 7,873.25, 10,862.93 and 5,480.54

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Solution

The fourth proportional to 7,873.25, 10,862.93 and 5,480.54 is: 7,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.25 : 10,862.93 = 5,480.54 : x
  2. Step 2: Convert to fraction form
    7,873.25/10,862.93 = 5,480.54/x
  3. Step 3: Cross multiply
    7,873.25x = 10,862.93 × 5,480.54
  4. Step 4: Simplify right side
    7,873.25x = 59,534,668.07
  5. Step 5: Solve for x
    x = 59,534,668.07/7,873.25
  6. Step 6: Final answer
    x = 7,561.64

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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.