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Finding the Fourth Proportional to 84,282.81, 116,313.81 and 48,472.85

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Solution

The fourth proportional to 84,282.81, 116,313.81 and 48,472.85 is: 66,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,282.81 : 116,313.81 = 48,472.85 : x
  2. Step 2: Convert to fraction form
    84,282.81/116,313.81 = 48,472.85/x
  3. Step 3: Cross multiply
    84,282.81x = 116,313.81 × 48,472.85
  4. Step 4: Simplify right side
    84,282.81x = 5,638,061,283.49
  5. Step 5: Solve for x
    x = 5,638,061,283.49/84,282.81
  6. Step 6: Final answer
    x = 66,894.56

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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.