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Finding the Fourth Proportional to 7,551.46, 10,420.72 and 4,194.48

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Solution

The fourth proportional to 7,551.46, 10,420.72 and 4,194.48 is: 5,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.46 : 10,420.72 = 4,194.48 : x
  2. Step 2: Convert to fraction form
    7,551.46/10,420.72 = 4,194.48/x
  3. Step 3: Cross multiply
    7,551.46x = 10,420.72 × 4,194.48
  4. Step 4: Simplify right side
    7,551.46x = 43,709,539.06
  5. Step 5: Solve for x
    x = 43,709,539.06/7,551.46
  6. Step 6: Final answer
    x = 5,788.23

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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.