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Finding the Fourth Proportional to 47,191.44, 70,811.90 and 19,114.48

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Solution

The fourth proportional to 47,191.44, 70,811.90 and 19,114.48 is: 28,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,191.44 : 70,811.90 = 19,114.48 : x
  2. Step 2: Convert to fraction form
    47,191.44/70,811.90 = 19,114.48/x
  3. Step 3: Cross multiply
    47,191.44x = 70,811.90 × 19,114.48
  4. Step 4: Simplify right side
    47,191.44x = 1,353,532,646.31
  5. Step 5: Solve for x
    x = 1,353,532,646.31/47,191.44
  6. Step 6: Final answer
    x = 28,681.74

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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.