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Finding the Fourth Proportional to 14,308.34, 19,745.43 and 8,020.58

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Solution

The fourth proportional to 14,308.34, 19,745.43 and 8,020.58 is: 11,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.34 : 19,745.43 = 8,020.58 : x
  2. Step 2: Convert to fraction form
    14,308.34/19,745.43 = 8,020.58/x
  3. Step 3: Cross multiply
    14,308.34x = 19,745.43 × 8,020.58
  4. Step 4: Simplify right side
    14,308.34x = 158,369,800.95
  5. Step 5: Solve for x
    x = 158,369,800.95/14,308.34
  6. Step 6: Final answer
    x = 11,068.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.