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Finding the Fourth Proportional to 28,967.67, 39,948.12 and 23,019.03

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Solution

The fourth proportional to 28,967.67, 39,948.12 and 23,019.03 is: 31,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.67 : 39,948.12 = 23,019.03 : x
  2. Step 2: Convert to fraction form
    28,967.67/39,948.12 = 23,019.03/x
  3. Step 3: Cross multiply
    28,967.67x = 39,948.12 × 23,019.03
  4. Step 4: Simplify right side
    28,967.67x = 919,566,972.72
  5. Step 5: Solve for x
    x = 919,566,972.72/28,967.67
  6. Step 6: Final answer
    x = 31,744.60

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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.