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Finding the Fourth Proportional to 14,880.40, 22,320.60 and 10,992.40

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Solution

The fourth proportional to 14,880.40, 22,320.60 and 10,992.40 is: 16,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.40 : 22,320.60 = 10,992.40 : x
  2. Step 2: Convert to fraction form
    14,880.40/22,320.60 = 10,992.40/x
  3. Step 3: Cross multiply
    14,880.40x = 22,320.60 × 10,992.40
  4. Step 4: Simplify right side
    14,880.40x = 245,356,963.44
  5. Step 5: Solve for x
    x = 245,356,963.44/14,880.40
  6. Step 6: Final answer
    x = 16,488.60

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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.