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Finding the Fourth Proportional to 84,387.63, 116,454.63 and 47,590.92

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Solution

The fourth proportional to 84,387.63, 116,454.63 and 47,590.92 is: 65,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,387.63 : 116,454.63 = 47,590.92 : x
  2. Step 2: Convert to fraction form
    84,387.63/116,454.63 = 47,590.92/x
  3. Step 3: Cross multiply
    84,387.63x = 116,454.63 × 47,590.92
  4. Step 4: Simplify right side
    84,387.63x = 5,542,182,979.96
  5. Step 5: Solve for x
    x = 5,542,182,979.96/84,387.63
  6. Step 6: Final answer
    x = 65,675.30

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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.