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Finding the Fourth Proportional to 28,025.27, 42,016.98 and 16,929.44

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Solution

The fourth proportional to 28,025.27, 42,016.98 and 16,929.44 is: 25,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.27 : 42,016.98 = 16,929.44 : x
  2. Step 2: Convert to fraction form
    28,025.27/42,016.98 = 16,929.44/x
  3. Step 3: Cross multiply
    28,025.27x = 42,016.98 × 16,929.44
  4. Step 4: Simplify right side
    28,025.27x = 711,323,941.89
  5. Step 5: Solve for x
    x = 711,323,941.89/28,025.27
  6. Step 6: Final answer
    x = 25,381.52

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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.