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Finding the Fourth Proportional to 14,245.95, 19,655.04 and 8,276.49

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Solution

The fourth proportional to 14,245.95, 19,655.04 and 8,276.49 is: 11,419.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.95 : 19,655.04 = 8,276.49 : x
  2. Step 2: Convert to fraction form
    14,245.95/19,655.04 = 8,276.49/x
  3. Step 3: Cross multiply
    14,245.95x = 19,655.04 × 8,276.49
  4. Step 4: Simplify right side
    14,245.95x = 162,674,742.01
  5. Step 5: Solve for x
    x = 162,674,742.01/14,245.95
  6. Step 6: Final answer
    x = 11,419.02

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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.