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Finding the Fourth Proportional to 19,252.71, 28,829.79 and 10,920.24

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Solution

The fourth proportional to 19,252.71, 28,829.79 and 10,920.24 is: 16,352.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,252.71 : 28,829.79 = 10,920.24 : x
  2. Step 2: Convert to fraction form
    19,252.71/28,829.79 = 10,920.24/x
  3. Step 3: Cross multiply
    19,252.71x = 28,829.79 × 10,920.24
  4. Step 4: Simplify right side
    19,252.71x = 314,828,225.95
  5. Step 5: Solve for x
    x = 314,828,225.95/19,252.71
  6. Step 6: Final answer
    x = 16,352.41

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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.