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Finding the Fourth Proportional to 18,868.07, 28,302.07 and 5,017.07

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Solution

The fourth proportional to 18,868.07, 28,302.07 and 5,017.07 is: 7,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.07 : 28,302.07 = 5,017.07 : x
  2. Step 2: Convert to fraction form
    18,868.07/28,302.07 = 5,017.07/x
  3. Step 3: Cross multiply
    18,868.07x = 28,302.07 × 5,017.07
  4. Step 4: Simplify right side
    18,868.07x = 141,993,466.33
  5. Step 5: Solve for x
    x = 141,993,466.33/18,868.07
  6. Step 6: Final answer
    x = 7,525.60

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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.