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Finding the Fourth Proportional to 18,891.44, 28,323.30 and 9,526.82

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Solution

The fourth proportional to 18,891.44, 28,323.30 and 9,526.82 is: 14,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.44 : 28,323.30 = 9,526.82 : x
  2. Step 2: Convert to fraction form
    18,891.44/28,323.30 = 9,526.82/x
  3. Step 3: Cross multiply
    18,891.44x = 28,323.30 × 9,526.82
  4. Step 4: Simplify right side
    18,891.44x = 269,830,980.91
  5. Step 5: Solve for x
    x = 269,830,980.91/18,891.44
  6. Step 6: Final answer
    x = 14,283.24

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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.