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Finding the Fourth Proportional to 28,554.39, 42,828.49 and 7,496.54

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Solution

The fourth proportional to 28,554.39, 42,828.49 and 7,496.54 is: 11,244.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554.39 : 42,828.49 = 7,496.54 : x
  2. Step 2: Convert to fraction form
    28,554.39/42,828.49 = 7,496.54/x
  3. Step 3: Cross multiply
    28,554.39x = 42,828.49 × 7,496.54
  4. Step 4: Simplify right side
    28,554.39x = 321,065,685.17
  5. Step 5: Solve for x
    x = 321,065,685.17/28,554.39
  6. Step 6: Final answer
    x = 11,244.00

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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.