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Finding the Fourth Proportional to 84,342.32, 116,392.52 and 48,531.62

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Solution

The fourth proportional to 84,342.32, 116,392.52 and 48,531.62 is: 66,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,342.32 : 116,392.52 = 48,531.62 : x
  2. Step 2: Convert to fraction form
    84,342.32/116,392.52 = 48,531.62/x
  3. Step 3: Cross multiply
    84,342.32x = 116,392.52 × 48,531.62
  4. Step 4: Simplify right side
    84,342.32x = 5,648,717,551.48
  5. Step 5: Solve for x
    x = 5,648,717,551.48/84,342.32
  6. Step 6: Final answer
    x = 66,973.70

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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.