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Finding the Fourth Proportional to 14,827.94, 20,459.21 and 8,858.45

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Solution

The fourth proportional to 14,827.94, 20,459.21 and 8,858.45 is: 12,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,827.94 : 20,459.21 = 8,858.45 : x
  2. Step 2: Convert to fraction form
    14,827.94/20,459.21 = 8,858.45/x
  3. Step 3: Cross multiply
    14,827.94x = 20,459.21 × 8,858.45
  4. Step 4: Simplify right side
    14,827.94x = 181,236,742.24
  5. Step 5: Solve for x
    x = 181,236,742.24/14,827.94
  6. Step 6: Final answer
    x = 12,222.66

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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.