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Finding the Fourth Proportional to 6,862.96, 9,470.93 and 3,719.15

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Solution

The fourth proportional to 6,862.96, 9,470.93 and 3,719.15 is: 5,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.96 : 9,470.93 = 3,719.15 : x
  2. Step 2: Convert to fraction form
    6,862.96/9,470.93 = 3,719.15/x
  3. Step 3: Cross multiply
    6,862.96x = 9,470.93 × 3,719.15
  4. Step 4: Simplify right side
    6,862.96x = 35,223,809.31
  5. Step 5: Solve for x
    x = 35,223,809.31/6,862.96
  6. Step 6: Final answer
    x = 5,132.45

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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.