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Finding the Fourth Proportional to 14,805.16, 20,411.22 and 14,346.52

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Solution

The fourth proportional to 14,805.16, 20,411.22 and 14,346.52 is: 19,778.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.16 : 20,411.22 = 14,346.52 : x
  2. Step 2: Convert to fraction form
    14,805.16/20,411.22 = 14,346.52/x
  3. Step 3: Cross multiply
    14,805.16x = 20,411.22 × 14,346.52
  4. Step 4: Simplify right side
    14,805.16x = 292,829,975.95
  5. Step 5: Solve for x
    x = 292,829,975.95/14,805.16
  6. Step 6: Final answer
    x = 19,778.91

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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.