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Finding the Fourth Proportional to 23,482.55, 32,406.21 and 12,872.16

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Solution

The fourth proportional to 23,482.55, 32,406.21 and 12,872.16 is: 17,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,482.55 : 32,406.21 = 12,872.16 : x
  2. Step 2: Convert to fraction form
    23,482.55/32,406.21 = 12,872.16/x
  3. Step 3: Cross multiply
    23,482.55x = 32,406.21 × 12,872.16
  4. Step 4: Simplify right side
    23,482.55x = 417,137,920.11
  5. Step 5: Solve for x
    x = 417,137,920.11/23,482.55
  6. Step 6: Final answer
    x = 17,763.74

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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.