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Finding the Fourth Proportional to 14,473.12, 19,968.06 and 8,880.88

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Solution

The fourth proportional to 14,473.12, 19,968.06 and 8,880.88 is: 12,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.12 : 19,968.06 = 8,880.88 : x
  2. Step 2: Convert to fraction form
    14,473.12/19,968.06 = 8,880.88/x
  3. Step 3: Cross multiply
    14,473.12x = 19,968.06 × 8,880.88
  4. Step 4: Simplify right side
    14,473.12x = 177,333,944.69
  5. Step 5: Solve for x
    x = 177,333,944.69/14,473.12
  6. Step 6: Final answer
    x = 12,252.64

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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.