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Finding the Fourth Proportional to 28,482.92, 39,300.42 and 16,540.07

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Solution

The fourth proportional to 28,482.92, 39,300.42 and 16,540.07 is: 22,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.92 : 39,300.42 = 16,540.07 : x
  2. Step 2: Convert to fraction form
    28,482.92/39,300.42 = 16,540.07/x
  3. Step 3: Cross multiply
    28,482.92x = 39,300.42 × 16,540.07
  4. Step 4: Simplify right side
    28,482.92x = 650,031,697.83
  5. Step 5: Solve for x
    x = 650,031,697.83/28,482.92
  6. Step 6: Final answer
    x = 22,821.81

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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.