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Finding the Fourth Proportional to 84,689.94, 116,881.74 and 48,889.56

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Solution

The fourth proportional to 84,689.94, 116,881.74 and 48,889.56 is: 67,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,689.94 : 116,881.74 = 48,889.56 : x
  2. Step 2: Convert to fraction form
    84,689.94/116,881.74 = 48,889.56/x
  3. Step 3: Cross multiply
    84,689.94x = 116,881.74 × 48,889.56
  4. Step 4: Simplify right side
    84,689.94x = 5,714,296,840.63
  5. Step 5: Solve for x
    x = 5,714,296,840.63/84,689.94
  6. Step 6: Final answer
    x = 67,473.15

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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.