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Finding the Fourth Proportional to 53,764.64, 80,630.55 and 14,316.63

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Solution

The fourth proportional to 53,764.64, 80,630.55 and 14,316.63 is: 21,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,764.64 : 80,630.55 = 14,316.63 : x
  2. Step 2: Convert to fraction form
    53,764.64/80,630.55 = 14,316.63/x
  3. Step 3: Cross multiply
    53,764.64x = 80,630.55 × 14,316.63
  4. Step 4: Simplify right side
    53,764.64x = 1,154,357,751.05
  5. Step 5: Solve for x
    x = 1,154,357,751.05/53,764.64
  6. Step 6: Final answer
    x = 21,470.58

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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.