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Finding the Fourth Proportional to 14,799.95, 20,423.34 and 8,754.11

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Solution

The fourth proportional to 14,799.95, 20,423.34 and 8,754.11 is: 12,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.95 : 20,423.34 = 8,754.11 : x
  2. Step 2: Convert to fraction form
    14,799.95/20,423.34 = 8,754.11/x
  3. Step 3: Cross multiply
    14,799.95x = 20,423.34 × 8,754.11
  4. Step 4: Simplify right side
    14,799.95x = 178,788,164.93
  5. Step 5: Solve for x
    x = 178,788,164.93/14,799.95
  6. Step 6: Final answer
    x = 12,080.32

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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.