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Finding the Fourth Proportional to 84,808.94, 117,045.63 and 48,513.78

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Solution

The fourth proportional to 84,808.94, 117,045.63 and 48,513.78 is: 66,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,808.94 : 117,045.63 = 48,513.78 : x
  2. Step 2: Convert to fraction form
    84,808.94/117,045.63 = 48,513.78/x
  3. Step 3: Cross multiply
    84,808.94x = 117,045.63 × 48,513.78
  4. Step 4: Simplify right side
    84,808.94x = 5,678,325,943.78
  5. Step 5: Solve for x
    x = 5,678,325,943.78/84,808.94
  6. Step 6: Final answer
    x = 66,954.34

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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.