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Finding the Fourth Proportional to 13,624.51, 18,809.54 and 8,848.72

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Solution

The fourth proportional to 13,624.51, 18,809.54 and 8,848.72 is: 12,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.51 : 18,809.54 = 8,848.72 : x
  2. Step 2: Convert to fraction form
    13,624.51/18,809.54 = 8,848.72/x
  3. Step 3: Cross multiply
    13,624.51x = 18,809.54 × 8,848.72
  4. Step 4: Simplify right side
    13,624.51x = 166,440,308.55
  5. Step 5: Solve for x
    x = 166,440,308.55/13,624.51
  6. Step 6: Final answer
    x = 12,216.24

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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.