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Finding the Fourth Proportional to 34,894.41, 48,152.91 and 18,978.84

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Solution

The fourth proportional to 34,894.41, 48,152.91 and 18,978.84 is: 26,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,894.41 : 48,152.91 = 18,978.84 : x
  2. Step 2: Convert to fraction form
    34,894.41/48,152.91 = 18,978.84/x
  3. Step 3: Cross multiply
    34,894.41x = 48,152.91 × 18,978.84
  4. Step 4: Simplify right side
    34,894.41x = 913,886,374.42
  5. Step 5: Solve for x
    x = 913,886,374.42/34,894.41
  6. Step 6: Final answer
    x = 26,190.05

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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.