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Finding the Fourth Proportional to 28,950.70, 43,393.65 and 14,905.30

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Solution

The fourth proportional to 28,950.70, 43,393.65 and 14,905.30 is: 22,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.70 : 43,393.65 = 14,905.30 : x
  2. Step 2: Convert to fraction form
    28,950.70/43,393.65 = 14,905.30/x
  3. Step 3: Cross multiply
    28,950.70x = 43,393.65 × 14,905.30
  4. Step 4: Simplify right side
    28,950.70x = 646,795,371.35
  5. Step 5: Solve for x
    x = 646,795,371.35/28,950.70
  6. Step 6: Final answer
    x = 22,341.27

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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.