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Finding the Fourth Proportional to 53,073, 79,609.14 and 13,630.14

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Solution

The fourth proportional to 53,073, 79,609.14 and 13,630.14 is: 20,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,073 : 79,609.14 = 13,630.14 : x
  2. Step 2: Convert to fraction form
    53,073/79,609.14 = 13,630.14/x
  3. Step 3: Cross multiply
    53,073x = 79,609.14 × 13,630.14
  4. Step 4: Simplify right side
    53,073x = 1,085,083,723.48
  5. Step 5: Solve for x
    x = 1,085,083,723.48/53,073
  6. Step 6: Final answer
    x = 20,445.12

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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.