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Finding the Fourth Proportional to 43,373.61, 65,071.98 and 18,415.08

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Solution

The fourth proportional to 43,373.61, 65,071.98 and 18,415.08 is: 27,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,373.61 : 65,071.98 = 18,415.08 : x
  2. Step 2: Convert to fraction form
    43,373.61/65,071.98 = 18,415.08/x
  3. Step 3: Cross multiply
    43,373.61x = 65,071.98 × 18,415.08
  4. Step 4: Simplify right side
    43,373.61x = 1,198,305,717.46
  5. Step 5: Solve for x
    x = 1,198,305,717.46/43,373.61
  6. Step 6: Final answer
    x = 27,627.53

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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.