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Finding the Fourth Proportional to 10,765.82, 14,856.80 and 5,985.60

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Solution

The fourth proportional to 10,765.82, 14,856.80 and 5,985.60 is: 8,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.82 : 14,856.80 = 5,985.60 : x
  2. Step 2: Convert to fraction form
    10,765.82/14,856.80 = 5,985.60/x
  3. Step 3: Cross multiply
    10,765.82x = 14,856.80 × 5,985.60
  4. Step 4: Simplify right side
    10,765.82x = 88,926,862.08
  5. Step 5: Solve for x
    x = 88,926,862.08/10,765.82
  6. Step 6: Final answer
    x = 8,260.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.