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Finding the Fourth Proportional to 30,467.60, 45,701.40 and 16,470.80

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Solution

The fourth proportional to 30,467.60, 45,701.40 and 16,470.80 is: 24,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,467.60 : 45,701.40 = 16,470.80 : x
  2. Step 2: Convert to fraction form
    30,467.60/45,701.40 = 16,470.80/x
  3. Step 3: Cross multiply
    30,467.60x = 45,701.40 × 16,470.80
  4. Step 4: Simplify right side
    30,467.60x = 752,738,619.12
  5. Step 5: Solve for x
    x = 752,738,619.12/30,467.60
  6. Step 6: Final answer
    x = 24,706.20

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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.