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Finding the Fourth Proportional to 84,992.15, 117,289.28 and 47,266.40

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Solution

The fourth proportional to 84,992.15, 117,289.28 and 47,266.40 is: 65,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992.15 : 117,289.28 = 47,266.40 : x
  2. Step 2: Convert to fraction form
    84,992.15/117,289.28 = 47,266.40/x
  3. Step 3: Cross multiply
    84,992.15x = 117,289.28 × 47,266.40
  4. Step 4: Simplify right side
    84,992.15x = 5,543,842,024.19
  5. Step 5: Solve for x
    x = 5,543,842,024.19/84,992.15
  6. Step 6: Final answer
    x = 65,227.69

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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.