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Finding the Fourth Proportional to 46,853.20, 70,279.80 and 31,106.80

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Solution

The fourth proportional to 46,853.20, 70,279.80 and 31,106.80 is: 46,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,853.20 : 70,279.80 = 31,106.80 : x
  2. Step 2: Convert to fraction form
    46,853.20/70,279.80 = 31,106.80/x
  3. Step 3: Cross multiply
    46,853.20x = 70,279.80 × 31,106.80
  4. Step 4: Simplify right side
    46,853.20x = 2,186,179,682.64
  5. Step 5: Solve for x
    x = 2,186,179,682.64/46,853.20
  6. Step 6: Final answer
    x = 46,660.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.