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Finding the Fourth Proportional to 34,875.98, 48,128.90 and 18,960.44

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Solution

The fourth proportional to 34,875.98, 48,128.90 and 18,960.44 is: 26,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,875.98 : 48,128.90 = 18,960.44 : x
  2. Step 2: Convert to fraction form
    34,875.98/48,128.90 = 18,960.44/x
  3. Step 3: Cross multiply
    34,875.98x = 48,128.90 × 18,960.44
  4. Step 4: Simplify right side
    34,875.98x = 912,545,120.72
  5. Step 5: Solve for x
    x = 912,545,120.72/34,875.98
  6. Step 6: Final answer
    x = 26,165.43

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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.