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Finding the Fourth Proportional to 19,225.80, 28,801.80 and 14,821.56

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Solution

The fourth proportional to 19,225.80, 28,801.80 and 14,821.56 is: 22,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,225.80 : 28,801.80 = 14,821.56 : x
  2. Step 2: Convert to fraction form
    19,225.80/28,801.80 = 14,821.56/x
  3. Step 3: Cross multiply
    19,225.80x = 28,801.80 × 14,821.56
  4. Step 4: Simplify right side
    19,225.80x = 426,887,606.81
  5. Step 5: Solve for x
    x = 426,887,606.81/19,225.80
  6. Step 6: Final answer
    x = 22,203.89

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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.