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Finding the Fourth Proportional to 38,603.40, 57,807.90 and 25,384.20

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Solution

The fourth proportional to 38,603.40, 57,807.90 and 25,384.20 is: 38,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.40 : 57,807.90 = 25,384.20 : x
  2. Step 2: Convert to fraction form
    38,603.40/57,807.90 = 25,384.20/x
  3. Step 3: Cross multiply
    38,603.40x = 57,807.90 × 25,384.20
  4. Step 4: Simplify right side
    38,603.40x = 1,467,407,295.18
  5. Step 5: Solve for x
    x = 1,467,407,295.18/38,603.40
  6. Step 6: Final answer
    x = 38,012.38

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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.