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Finding the Fourth Proportional to 47,145.60, 70,682.40 and 23,788.80

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Solution

The fourth proportional to 47,145.60, 70,682.40 and 23,788.80 is: 35,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,145.60 : 70,682.40 = 23,788.80 : x
  2. Step 2: Convert to fraction form
    47,145.60/70,682.40 = 23,788.80/x
  3. Step 3: Cross multiply
    47,145.60x = 70,682.40 × 23,788.80
  4. Step 4: Simplify right side
    47,145.60x = 1,681,449,477.12
  5. Step 5: Solve for x
    x = 1,681,449,477.12/47,145.60
  6. Step 6: Final answer
    x = 35,665.04

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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.