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Finding the Fourth Proportional to 28,496.88, 39,323.07 and 17,868.06

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Solution

The fourth proportional to 28,496.88, 39,323.07 and 17,868.06 is: 24,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496.88 : 39,323.07 = 17,868.06 : x
  2. Step 2: Convert to fraction form
    28,496.88/39,323.07 = 17,868.06/x
  3. Step 3: Cross multiply
    28,496.88x = 39,323.07 × 17,868.06
  4. Step 4: Simplify right side
    28,496.88x = 702,626,974.14
  5. Step 5: Solve for x
    x = 702,626,974.14/28,496.88
  6. Step 6: Final answer
    x = 24,656.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.