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Finding the Fourth Proportional to 7,130.45, 10,681.08 and 4,199.87

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Solution

The fourth proportional to 7,130.45, 10,681.08 and 4,199.87 is: 6,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.45 : 10,681.08 = 4,199.87 : x
  2. Step 2: Convert to fraction form
    7,130.45/10,681.08 = 4,199.87/x
  3. Step 3: Cross multiply
    7,130.45x = 10,681.08 × 4,199.87
  4. Step 4: Simplify right side
    7,130.45x = 44,859,094.05
  5. Step 5: Solve for x
    x = 44,859,094.05/7,130.45
  6. Step 6: Final answer
    x = 6,291.21

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