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Finding the Fourth Proportional to 48,855.40, 68,535.80 and 48,855.40

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Solution

The fourth proportional to 48,855.40, 68,535.80 and 48,855.40 is: 68,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,855.40 : 68,535.80 = 48,855.40 : x
  2. Step 2: Convert to fraction form
    48,855.40/68,535.80 = 48,855.40/x
  3. Step 3: Cross multiply
    48,855.40x = 68,535.80 × 48,855.40
  4. Step 4: Simplify right side
    48,855.40x = 3,348,343,923.32
  5. Step 5: Solve for x
    x = 3,348,343,923.32/48,855.40
  6. Step 6: Final answer
    x = 68,535.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.