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Finding the Fourth Proportional to 18,907.50, 28,361.25 and 6,595.50

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Solution

The fourth proportional to 18,907.50, 28,361.25 and 6,595.50 is: 9,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.50 : 28,361.25 = 6,595.50 : x
  2. Step 2: Convert to fraction form
    18,907.50/28,361.25 = 6,595.50/x
  3. Step 3: Cross multiply
    18,907.50x = 28,361.25 × 6,595.50
  4. Step 4: Simplify right side
    18,907.50x = 187,056,624.38
  5. Step 5: Solve for x
    x = 187,056,624.38/18,907.50
  6. Step 6: Final answer
    x = 9,893.25

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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.