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Finding the Fourth Proportional to 14,422.66, 19,903.53 and 8,458.63

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Solution

The fourth proportional to 14,422.66, 19,903.53 and 8,458.63 is: 11,673.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.66 : 19,903.53 = 8,458.63 : x
  2. Step 2: Convert to fraction form
    14,422.66/19,903.53 = 8,458.63/x
  3. Step 3: Cross multiply
    14,422.66x = 19,903.53 × 8,458.63
  4. Step 4: Simplify right side
    14,422.66x = 168,356,595.96
  5. Step 5: Solve for x
    x = 168,356,595.96/14,422.66
  6. Step 6: Final answer
    x = 11,673.06

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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.