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Finding the Fourth Proportional to 5,335.48, 7,362.98 and 2,977.80

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Solution

The fourth proportional to 5,335.48, 7,362.98 and 2,977.80 is: 4,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.48 : 7,362.98 = 2,977.80 : x
  2. Step 2: Convert to fraction form
    5,335.48/7,362.98 = 2,977.80/x
  3. Step 3: Cross multiply
    5,335.48x = 7,362.98 × 2,977.80
  4. Step 4: Simplify right side
    5,335.48x = 21,925,481.84
  5. Step 5: Solve for x
    x = 21,925,481.84/5,335.48
  6. Step 6: Final answer
    x = 4,109.37

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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.