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Finding the Fourth Proportional to 13,655.68, 18,836.08 and 9,463.12

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Solution

The fourth proportional to 13,655.68, 18,836.08 and 9,463.12 is: 13,053.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.68 : 18,836.08 = 9,463.12 : x
  2. Step 2: Convert to fraction form
    13,655.68/18,836.08 = 9,463.12/x
  3. Step 3: Cross multiply
    13,655.68x = 18,836.08 × 9,463.12
  4. Step 4: Simplify right side
    13,655.68x = 178,248,085.37
  5. Step 5: Solve for x
    x = 178,248,085.37/13,655.68
  6. Step 6: Final answer
    x = 13,053.04

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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.