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Finding the Fourth Proportional to 14,703.39, 20,276.84 and 11,340.88

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Solution

The fourth proportional to 14,703.39, 20,276.84 and 11,340.88 is: 15,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.39 : 20,276.84 = 11,340.88 : x
  2. Step 2: Convert to fraction form
    14,703.39/20,276.84 = 11,340.88/x
  3. Step 3: Cross multiply
    14,703.39x = 20,276.84 × 11,340.88
  4. Step 4: Simplify right side
    14,703.39x = 229,957,186.88
  5. Step 5: Solve for x
    x = 229,957,186.88/14,703.39
  6. Step 6: Final answer
    x = 15,639.74

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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.