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Finding the Fourth Proportional to 30,594.03, 42,220.06 and 16,982.23

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Solution

The fourth proportional to 30,594.03, 42,220.06 and 16,982.23 is: 23,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,594.03 : 42,220.06 = 16,982.23 : x
  2. Step 2: Convert to fraction form
    30,594.03/42,220.06 = 16,982.23/x
  3. Step 3: Cross multiply
    30,594.03x = 42,220.06 × 16,982.23
  4. Step 4: Simplify right side
    30,594.03x = 716,990,769.53
  5. Step 5: Solve for x
    x = 716,990,769.53/30,594.03
  6. Step 6: Final answer
    x = 23,435.64

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Double scale
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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.