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Finding the Fourth Proportional to 34,699.88, 47,885.85 and 18,784.46

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Solution

The fourth proportional to 34,699.88, 47,885.85 and 18,784.46 is: 25,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,699.88 : 47,885.85 = 18,784.46 : x
  2. Step 2: Convert to fraction form
    34,699.88/47,885.85 = 18,784.46/x
  3. Step 3: Cross multiply
    34,699.88x = 47,885.85 × 18,784.46
  4. Step 4: Simplify right side
    34,699.88x = 899,509,594.46
  5. Step 5: Solve for x
    x = 899,509,594.46/34,699.88
  6. Step 6: Final answer
    x = 25,922.56

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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.