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Finding the Fourth Proportional to 42,806.19, 64,220.23 and 25,051.80

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Solution

The fourth proportional to 42,806.19, 64,220.23 and 25,051.80 is: 37,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,806.19 : 64,220.23 = 25,051.80 : x
  2. Step 2: Convert to fraction form
    42,806.19/64,220.23 = 25,051.80/x
  3. Step 3: Cross multiply
    42,806.19x = 64,220.23 × 25,051.80
  4. Step 4: Simplify right side
    42,806.19x = 1,608,832,099.44
  5. Step 5: Solve for x
    x = 1,608,832,099.44/42,806.19
  6. Step 6: Final answer
    x = 37,584.10

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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.