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Finding the Fourth Proportional to 35,511.30, 53,266.95 and 19,764.90

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Solution

The fourth proportional to 35,511.30, 53,266.95 and 19,764.90 is: 29,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,511.30 : 53,266.95 = 19,764.90 : x
  2. Step 2: Convert to fraction form
    35,511.30/53,266.95 = 19,764.90/x
  3. Step 3: Cross multiply
    35,511.30x = 53,266.95 × 19,764.90
  4. Step 4: Simplify right side
    35,511.30x = 1,052,815,940.06
  5. Step 5: Solve for x
    x = 1,052,815,940.06/35,511.30
  6. Step 6: Final answer
    x = 29,647.35

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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.