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Finding the Fourth Proportional to 7,274.20, 10,038.04 and 4,130.32

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Solution

The fourth proportional to 7,274.20, 10,038.04 and 4,130.32 is: 5,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.20 : 10,038.04 = 4,130.32 : x
  2. Step 2: Convert to fraction form
    7,274.20/10,038.04 = 4,130.32/x
  3. Step 3: Cross multiply
    7,274.20x = 10,038.04 × 4,130.32
  4. Step 4: Simplify right side
    7,274.20x = 41,460,317.37
  5. Step 5: Solve for x
    x = 41,460,317.37/7,274.20
  6. Step 6: Final answer
    x = 5,699.64

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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.