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Finding the Fourth Proportional to 14,695.92, 20,220.30 and 12,700.08

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Solution

The fourth proportional to 14,695.92, 20,220.30 and 12,700.08 is: 17,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.92 : 20,220.30 = 12,700.08 : x
  2. Step 2: Convert to fraction form
    14,695.92/20,220.30 = 12,700.08/x
  3. Step 3: Cross multiply
    14,695.92x = 20,220.30 × 12,700.08
  4. Step 4: Simplify right side
    14,695.92x = 256,799,427.62
  5. Step 5: Solve for x
    x = 256,799,427.62/14,695.92
  6. Step 6: Final answer
    x = 17,474.20

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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.