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Finding the Fourth Proportional to 53,693.99, 80,534.72 and 14,254.16

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Solution

The fourth proportional to 53,693.99, 80,534.72 and 14,254.16 is: 21,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,693.99 : 80,534.72 = 14,254.16 : x
  2. Step 2: Convert to fraction form
    53,693.99/80,534.72 = 14,254.16/x
  3. Step 3: Cross multiply
    53,693.99x = 80,534.72 × 14,254.16
  4. Step 4: Simplify right side
    53,693.99x = 1,147,954,784.44
  5. Step 5: Solve for x
    x = 1,147,954,784.44/53,693.99
  6. Step 6: Final answer
    x = 21,379.58

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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.