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Finding the Fourth Proportional to 53,659.60, 80,489.40 and 31,483.60

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Solution

The fourth proportional to 53,659.60, 80,489.40 and 31,483.60 is: 47,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,659.60 : 80,489.40 = 31,483.60 : x
  2. Step 2: Convert to fraction form
    53,659.60/80,489.40 = 31,483.60/x
  3. Step 3: Cross multiply
    53,659.60x = 80,489.40 × 31,483.60
  4. Step 4: Simplify right side
    53,659.60x = 2,534,096,073.84
  5. Step 5: Solve for x
    x = 2,534,096,073.84/53,659.60
  6. Step 6: Final answer
    x = 47,225.40

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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.