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Finding the Fourth Proportional to 5,534.76, 7,621.64 and 4,945.08

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Solution

The fourth proportional to 5,534.76, 7,621.64 and 4,945.08 is: 6,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,534.76 : 7,621.64 = 4,945.08 : x
  2. Step 2: Convert to fraction form
    5,534.76/7,621.64 = 4,945.08/x
  3. Step 3: Cross multiply
    5,534.76x = 7,621.64 × 4,945.08
  4. Step 4: Simplify right side
    5,534.76x = 37,689,669.75
  5. Step 5: Solve for x
    x = 37,689,669.75/5,534.76
  6. Step 6: Final answer
    x = 6,809.63

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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.