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Finding the Fourth Proportional to 77,893.40, 116,840.10 and 25,308.20

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Solution

The fourth proportional to 77,893.40, 116,840.10 and 25,308.20 is: 37,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,893.40 : 116,840.10 = 25,308.20 : x
  2. Step 2: Convert to fraction form
    77,893.40/116,840.10 = 25,308.20/x
  3. Step 3: Cross multiply
    77,893.40x = 116,840.10 × 25,308.20
  4. Step 4: Simplify right side
    77,893.40x = 2,957,012,618.82
  5. Step 5: Solve for x
    x = 2,957,012,618.82/77,893.40
  6. Step 6: Final answer
    x = 37,962.30

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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.