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Finding the Fourth Proportional to 5,328.64, 7,353.48 and 2,970.64

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Solution

The fourth proportional to 5,328.64, 7,353.48 and 2,970.64 is: 4,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.64 : 7,353.48 = 2,970.64 : x
  2. Step 2: Convert to fraction form
    5,328.64/7,353.48 = 2,970.64/x
  3. Step 3: Cross multiply
    5,328.64x = 7,353.48 × 2,970.64
  4. Step 4: Simplify right side
    5,328.64x = 21,844,541.83
  5. Step 5: Solve for x
    x = 21,844,541.83/5,328.64
  6. Step 6: Final answer
    x = 4,099.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.