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Finding the Fourth Proportional to 65,213.80, 97,820.70 and 49,661.80

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Solution

The fourth proportional to 65,213.80, 97,820.70 and 49,661.80 is: 74,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,213.80 : 97,820.70 = 49,661.80 : x
  2. Step 2: Convert to fraction form
    65,213.80/97,820.70 = 49,661.80/x
  3. Step 3: Cross multiply
    65,213.80x = 97,820.70 × 49,661.80
  4. Step 4: Simplify right side
    65,213.80x = 4,857,952,039.26
  5. Step 5: Solve for x
    x = 4,857,952,039.26/65,213.80
  6. Step 6: Final answer
    x = 74,492.70

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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.