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Finding the Fourth Proportional to 40,410.60, 60,615.90 and 31,068.60

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Solution

The fourth proportional to 40,410.60, 60,615.90 and 31,068.60 is: 46,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,410.60 : 60,615.90 = 31,068.60 : x
  2. Step 2: Convert to fraction form
    40,410.60/60,615.90 = 31,068.60/x
  3. Step 3: Cross multiply
    40,410.60x = 60,615.90 × 31,068.60
  4. Step 4: Simplify right side
    40,410.60x = 1,883,251,150.74
  5. Step 5: Solve for x
    x = 1,883,251,150.74/40,410.60
  6. Step 6: Final answer
    x = 46,602.90

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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.