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Finding the Fourth Proportional to 77,344.60, 116,022.30 and 30,591.40

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Solution

The fourth proportional to 77,344.60, 116,022.30 and 30,591.40 is: 45,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,344.60 : 116,022.30 = 30,591.40 : x
  2. Step 2: Convert to fraction form
    77,344.60/116,022.30 = 30,591.40/x
  3. Step 3: Cross multiply
    77,344.60x = 116,022.30 × 30,591.40
  4. Step 4: Simplify right side
    77,344.60x = 3,549,284,588.22
  5. Step 5: Solve for x
    x = 3,549,284,588.22/77,344.60
  6. Step 6: Final answer
    x = 45,889.24

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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.