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Finding the Fourth Proportional to 65,999.80, 92,633 and 65,999.80

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Solution

The fourth proportional to 65,999.80, 92,633 and 65,999.80 is: 92,633

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,999.80 : 92,633 = 65,999.80 : x
  2. Step 2: Convert to fraction form
    65,999.80/92,633 = 65,999.80/x
  3. Step 3: Cross multiply
    65,999.80x = 92,633 × 65,999.80
  4. Step 4: Simplify right side
    65,999.80x = 6,113,759,473.40
  5. Step 5: Solve for x
    x = 6,113,759,473.40/65,999.80
  6. Step 6: Final answer
    x = 92,633

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.