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Finding the Fourth Proportional to 14,654.84, 20,210.63 and 11,505.56

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Solution

The fourth proportional to 14,654.84, 20,210.63 and 11,505.56 is: 15,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.84 : 20,210.63 = 11,505.56 : x
  2. Step 2: Convert to fraction form
    14,654.84/20,210.63 = 11,505.56/x
  3. Step 3: Cross multiply
    14,654.84x = 20,210.63 × 11,505.56
  4. Step 4: Simplify right side
    14,654.84x = 232,534,457.52
  5. Step 5: Solve for x
    x = 232,534,457.52/14,654.84
  6. Step 6: Final answer
    x = 15,867.42

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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.