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Finding the Fourth Proportional to 65,701.93, 98,551.51 and 21,328.63

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Solution

The fourth proportional to 65,701.93, 98,551.51 and 21,328.63 is: 31,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.93 : 98,551.51 = 21,328.63 : x
  2. Step 2: Convert to fraction form
    65,701.93/98,551.51 = 21,328.63/x
  3. Step 3: Cross multiply
    65,701.93x = 98,551.51 × 21,328.63
  4. Step 4: Simplify right side
    65,701.93x = 2,101,968,692.73
  5. Step 5: Solve for x
    x = 2,101,968,692.73/65,701.93
  6. Step 6: Final answer
    x = 31,992.50

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Double scale
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Similar ratio
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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.