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Finding the Fourth Proportional to 30,802.80, 46,204.07 and 12,069.60

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Solution

The fourth proportional to 30,802.80, 46,204.07 and 12,069.60 is: 18,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802.80 : 46,204.07 = 12,069.60 : x
  2. Step 2: Convert to fraction form
    30,802.80/46,204.07 = 12,069.60/x
  3. Step 3: Cross multiply
    30,802.80x = 46,204.07 × 12,069.60
  4. Step 4: Simplify right side
    30,802.80x = 557,664,582.92
  5. Step 5: Solve for x
    x = 557,664,582.92/30,802.80
  6. Step 6: Final answer
    x = 18,104.35

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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.