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Finding the Fourth Proportional to 53,656.64, 80,486.48 and 14,213.76

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Solution

The fourth proportional to 53,656.64, 80,486.48 and 14,213.76 is: 21,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,656.64 : 80,486.48 = 14,213.76 : x
  2. Step 2: Convert to fraction form
    53,656.64/80,486.48 = 14,213.76/x
  3. Step 3: Cross multiply
    53,656.64x = 80,486.48 × 14,213.76
  4. Step 4: Simplify right side
    53,656.64x = 1,144,015,509.96
  5. Step 5: Solve for x
    x = 1,144,015,509.96/53,656.64
  6. Step 6: Final answer
    x = 21,321.04

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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.