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Finding the Fourth Proportional to 65,840.77, 98,770.88 and 19,087.57

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Solution

The fourth proportional to 65,840.77, 98,770.88 and 19,087.57 is: 28,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840.77 : 98,770.88 = 19,087.57 : x
  2. Step 2: Convert to fraction form
    65,840.77/98,770.88 = 19,087.57/x
  3. Step 3: Cross multiply
    65,840.77x = 98,770.88 × 19,087.57
  4. Step 4: Simplify right side
    65,840.77x = 1,885,296,085.96
  5. Step 5: Solve for x
    x = 1,885,296,085.96/65,840.77
  6. Step 6: Final answer
    x = 28,634.17

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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.