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Finding the Fourth Proportional to 14,750.61, 20,370.26 and 12,613.76

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Solution

The fourth proportional to 14,750.61, 20,370.26 and 12,613.76 is: 17,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.61 : 20,370.26 = 12,613.76 : x
  2. Step 2: Convert to fraction form
    14,750.61/20,370.26 = 12,613.76/x
  3. Step 3: Cross multiply
    14,750.61x = 20,370.26 × 12,613.76
  4. Step 4: Simplify right side
    14,750.61x = 256,945,507.71
  5. Step 5: Solve for x
    x = 256,945,507.71/14,750.61
  6. Step 6: Final answer
    x = 17,419.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.