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Finding the Fourth Proportional to 47,124.25, 70,718.82 and 19,422.25

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Solution

The fourth proportional to 47,124.25, 70,718.82 and 19,422.25 is: 29,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,124.25 : 70,718.82 = 19,422.25 : x
  2. Step 2: Convert to fraction form
    47,124.25/70,718.82 = 19,422.25/x
  3. Step 3: Cross multiply
    47,124.25x = 70,718.82 × 19,422.25
  4. Step 4: Simplify right side
    47,124.25x = 1,373,518,601.75
  5. Step 5: Solve for x
    x = 1,373,518,601.75/47,124.25
  6. Step 6: Final answer
    x = 29,146.75

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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.