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Finding the Fourth Proportional to 22,315.70, 30,798.10 and 14,256.73

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Solution

The fourth proportional to 22,315.70, 30,798.10 and 14,256.73 is: 19,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,315.70 : 30,798.10 = 14,256.73 : x
  2. Step 2: Convert to fraction form
    22,315.70/30,798.10 = 14,256.73/x
  3. Step 3: Cross multiply
    22,315.70x = 30,798.10 × 14,256.73
  4. Step 4: Simplify right side
    22,315.70x = 439,080,083.58
  5. Step 5: Solve for x
    x = 439,080,083.58/22,315.70
  6. Step 6: Final answer
    x = 19,675.84

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Double scale
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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.