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Finding the Fourth Proportional to 13,572.84, 18,730.26 and 8,848.20

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Solution

The fourth proportional to 13,572.84, 18,730.26 and 8,848.20 is: 12,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.84 : 18,730.26 = 8,848.20 : x
  2. Step 2: Convert to fraction form
    13,572.84/18,730.26 = 8,848.20/x
  3. Step 3: Cross multiply
    13,572.84x = 18,730.26 × 8,848.20
  4. Step 4: Simplify right side
    13,572.84x = 165,729,086.53
  5. Step 5: Solve for x
    x = 165,729,086.53/13,572.84
  6. Step 6: Final answer
    x = 12,210.35

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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.