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Finding the Fourth Proportional to 14,442.53, 19,928.45 and 8,154.77

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Solution

The fourth proportional to 14,442.53, 19,928.45 and 8,154.77 is: 11,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.53 : 19,928.45 = 8,154.77 : x
  2. Step 2: Convert to fraction form
    14,442.53/19,928.45 = 8,154.77/x
  3. Step 3: Cross multiply
    14,442.53x = 19,928.45 × 8,154.77
  4. Step 4: Simplify right side
    14,442.53x = 162,511,885.43
  5. Step 5: Solve for x
    x = 162,511,885.43/14,442.53
  6. Step 6: Final answer
    x = 11,252.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.