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Finding the Fourth Proportional to 14,803.79, 20,426.65 and 8,835.10

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Solution

The fourth proportional to 14,803.79, 20,426.65 and 8,835.10 is: 12,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,803.79 : 20,426.65 = 8,835.10 : x
  2. Step 2: Convert to fraction form
    14,803.79/20,426.65 = 8,835.10/x
  3. Step 3: Cross multiply
    14,803.79x = 20,426.65 × 8,835.10
  4. Step 4: Simplify right side
    14,803.79x = 180,471,422.26
  5. Step 5: Solve for x
    x = 180,471,422.26/14,803.79
  6. Step 6: Final answer
    x = 12,190.90

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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.