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Finding the Fourth Proportional to 3,313.14, 4,968.48 and 972.50

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Solution

The fourth proportional to 3,313.14, 4,968.48 and 972.50 is: 1,458.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.14 : 4,968.48 = 972.50 : x
  2. Step 2: Convert to fraction form
    3,313.14/4,968.48 = 972.50/x
  3. Step 3: Cross multiply
    3,313.14x = 4,968.48 × 972.50
  4. Step 4: Simplify right side
    3,313.14x = 4,831,846.80
  5. Step 5: Solve for x
    x = 4,831,846.80/3,313.14
  6. Step 6: Final answer
    x = 1,458.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.