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Finding the Fourth Proportional to 19,807.26, 29,718.72 and 14,568.72

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Solution

The fourth proportional to 19,807.26, 29,718.72 and 14,568.72 is: 21,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.26 : 29,718.72 = 14,568.72 : x
  2. Step 2: Convert to fraction form
    19,807.26/29,718.72 = 14,568.72/x
  3. Step 3: Cross multiply
    19,807.26x = 29,718.72 × 14,568.72
  4. Step 4: Simplify right side
    19,807.26x = 432,963,710.44
  5. Step 5: Solve for x
    x = 432,963,710.44/19,807.26
  6. Step 6: Final answer
    x = 21,858.84

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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.