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Finding the Fourth Proportional to 20,746.30, 31,053.30 and 16,372.30

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Solution

The fourth proportional to 20,746.30, 31,053.30 and 16,372.30 is: 24,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.30 : 31,053.30 = 16,372.30 : x
  2. Step 2: Convert to fraction form
    20,746.30/31,053.30 = 16,372.30/x
  3. Step 3: Cross multiply
    20,746.30x = 31,053.30 × 16,372.30
  4. Step 4: Simplify right side
    20,746.30x = 508,413,943.59
  5. Step 5: Solve for x
    x = 508,413,943.59/20,746.30
  6. Step 6: Final answer
    x = 24,506.25

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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.