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Finding the Fourth Proportional to 3,312.64, 4,968.64 and 1,004.16

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Solution

The fourth proportional to 3,312.64, 4,968.64 and 1,004.16 is: 1,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.64 : 4,968.64 = 1,004.16 : x
  2. Step 2: Convert to fraction form
    3,312.64/4,968.64 = 1,004.16/x
  3. Step 3: Cross multiply
    3,312.64x = 4,968.64 × 1,004.16
  4. Step 4: Simplify right side
    3,312.64x = 4,989,309.54
  5. Step 5: Solve for x
    x = 4,989,309.54/3,312.64
  6. Step 6: Final answer
    x = 1,506.14

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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.