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Finding the Fourth Proportional to 47,287.60, 70,931.40 and 44,983.60

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Solution

The fourth proportional to 47,287.60, 70,931.40 and 44,983.60 is: 67,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,287.60 : 70,931.40 = 44,983.60 : x
  2. Step 2: Convert to fraction form
    47,287.60/70,931.40 = 44,983.60/x
  3. Step 3: Cross multiply
    47,287.60x = 70,931.40 × 44,983.60
  4. Step 4: Simplify right side
    47,287.60x = 3,190,749,725.04
  5. Step 5: Solve for x
    x = 3,190,749,725.04/47,287.60
  6. Step 6: Final answer
    x = 67,475.40

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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.