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Finding the Fourth Proportional to 14,695.74, 20,273.22 and 14,130.18

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Solution

The fourth proportional to 14,695.74, 20,273.22 and 14,130.18 is: 19,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.74 : 20,273.22 = 14,130.18 : x
  2. Step 2: Convert to fraction form
    14,695.74/20,273.22 = 14,130.18/x
  3. Step 3: Cross multiply
    14,695.74x = 20,273.22 × 14,130.18
  4. Step 4: Simplify right side
    14,695.74x = 286,464,247.78
  5. Step 5: Solve for x
    x = 286,464,247.78/14,695.74
  6. Step 6: Final answer
    x = 19,493.01

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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.