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Finding the Fourth Proportional to 25,228.80, 37,810.80 and 19,356.30

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Solution

The fourth proportional to 25,228.80, 37,810.80 and 19,356.30 is: 29,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,228.80 : 37,810.80 = 19,356.30 : x
  2. Step 2: Convert to fraction form
    25,228.80/37,810.80 = 19,356.30/x
  3. Step 3: Cross multiply
    25,228.80x = 37,810.80 × 19,356.30
  4. Step 4: Simplify right side
    25,228.80x = 731,877,188.04
  5. Step 5: Solve for x
    x = 731,877,188.04/25,228.80
  6. Step 6: Final answer
    x = 29,009.59

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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.