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Finding the Fourth Proportional to 28,699.54, 42,923.41 and 25,559.13

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Solution

The fourth proportional to 28,699.54, 42,923.41 and 25,559.13 is: 38,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.54 : 42,923.41 = 25,559.13 : x
  2. Step 2: Convert to fraction form
    28,699.54/42,923.41 = 25,559.13/x
  3. Step 3: Cross multiply
    28,699.54x = 42,923.41 × 25,559.13
  4. Step 4: Simplify right side
    28,699.54x = 1,097,085,016.23
  5. Step 5: Solve for x
    x = 1,097,085,016.23/28,699.54
  6. Step 6: Final answer
    x = 38,226.57

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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.