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Finding the Fourth Proportional to 47,107.20, 70,531.20 and 44,774.40

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Solution

The fourth proportional to 47,107.20, 70,531.20 and 44,774.40 is: 67,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,107.20 : 70,531.20 = 44,774.40 : x
  2. Step 2: Convert to fraction form
    47,107.20/70,531.20 = 44,774.40/x
  3. Step 3: Cross multiply
    47,107.20x = 70,531.20 × 44,774.40
  4. Step 4: Simplify right side
    47,107.20x = 3,157,992,161.28
  5. Step 5: Solve for x
    x = 3,157,992,161.28/47,107.20
  6. Step 6: Final answer
    x = 67,038.42

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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.