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Finding the Fourth Proportional to 84,626.70, 116,780.76 and 48,828.26

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Solution

The fourth proportional to 84,626.70, 116,780.76 and 48,828.26 is: 67,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,626.70 : 116,780.76 = 48,828.26 : x
  2. Step 2: Convert to fraction form
    84,626.70/116,780.76 = 48,828.26/x
  3. Step 3: Cross multiply
    84,626.70x = 116,780.76 × 48,828.26
  4. Step 4: Simplify right side
    84,626.70x = 5,702,201,312.28
  5. Step 5: Solve for x
    x = 5,702,201,312.28/84,626.70
  6. Step 6: Final answer
    x = 67,380.64

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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.