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Finding the Fourth Proportional to 34,766.79, 47,978.10 and 18,851.19

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Solution

The fourth proportional to 34,766.79, 47,978.10 and 18,851.19 is: 26,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,766.79 : 47,978.10 = 18,851.19 : x
  2. Step 2: Convert to fraction form
    34,766.79/47,978.10 = 18,851.19/x
  3. Step 3: Cross multiply
    34,766.79x = 47,978.10 × 18,851.19
  4. Step 4: Simplify right side
    34,766.79x = 904,444,278.94
  5. Step 5: Solve for x
    x = 904,444,278.94/34,766.79
  6. Step 6: Final answer
    x = 26,014.60

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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.