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Finding the Fourth Proportional to 61,266.58, 91,905 and 16,893.30

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Solution

The fourth proportional to 61,266.58, 91,905 and 16,893.30 is: 25,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,266.58 : 91,905 = 16,893.30 : x
  2. Step 2: Convert to fraction form
    61,266.58/91,905 = 16,893.30/x
  3. Step 3: Cross multiply
    61,266.58x = 91,905 × 16,893.30
  4. Step 4: Simplify right side
    61,266.58x = 1,552,578,736.50
  5. Step 5: Solve for x
    x = 1,552,578,736.50/61,266.58
  6. Step 6: Final answer
    x = 25,341.36

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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.