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Finding the Fourth Proportional to 54,885.76, 82,328.88 and 15,443.44

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Solution

The fourth proportional to 54,885.76, 82,328.88 and 15,443.44 is: 23,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885.76 : 82,328.88 = 15,443.44 : x
  2. Step 2: Convert to fraction form
    54,885.76/82,328.88 = 15,443.44/x
  3. Step 3: Cross multiply
    54,885.76x = 82,328.88 × 15,443.44
  4. Step 4: Simplify right side
    54,885.76x = 1,271,441,118.55
  5. Step 5: Solve for x
    x = 1,271,441,118.55/54,885.76
  6. Step 6: Final answer
    x = 23,165.23

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1.5x scale

Why These Related Problems?

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