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Finding the Fourth Proportional to 14,435.10, 21,652.74 and 4,574.40

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Solution

The fourth proportional to 14,435.10, 21,652.74 and 4,574.40 is: 6,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.10 : 21,652.74 = 4,574.40 : x
  2. Step 2: Convert to fraction form
    14,435.10/21,652.74 = 4,574.40/x
  3. Step 3: Cross multiply
    14,435.10x = 21,652.74 × 4,574.40
  4. Step 4: Simplify right side
    14,435.10x = 99,048,293.86
  5. Step 5: Solve for x
    x = 99,048,293.86/14,435.10
  6. Step 6: Final answer
    x = 6,861.63

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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.