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Finding the Fourth Proportional to 18,573.12, 27,848.16 and 8,708.16

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Solution

The fourth proportional to 18,573.12, 27,848.16 and 8,708.16 is: 13,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.12 : 27,848.16 = 8,708.16 : x
  2. Step 2: Convert to fraction form
    18,573.12/27,848.16 = 8,708.16/x
  3. Step 3: Cross multiply
    18,573.12x = 27,848.16 × 8,708.16
  4. Step 4: Simplify right side
    18,573.12x = 242,506,232.99
  5. Step 5: Solve for x
    x = 242,506,232.99/18,573.12
  6. Step 6: Final answer
    x = 13,056.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.