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Finding the Fourth Proportional to 14,472.93, 19,969.41 and 8,810.64

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Solution

The fourth proportional to 14,472.93, 19,969.41 and 8,810.64 is: 12,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.93 : 19,969.41 = 8,810.64 : x
  2. Step 2: Convert to fraction form
    14,472.93/19,969.41 = 8,810.64/x
  3. Step 3: Cross multiply
    14,472.93x = 19,969.41 × 8,810.64
  4. Step 4: Simplify right side
    14,472.93x = 175,943,282.52
  5. Step 5: Solve for x
    x = 175,943,282.52/14,472.93
  6. Step 6: Final answer
    x = 12,156.71

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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.