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Finding the Fourth Proportional to 48,860.40, 68,542.80 and 48,860.40

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Solution

The fourth proportional to 48,860.40, 68,542.80 and 48,860.40 is: 68,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,860.40 : 68,542.80 = 48,860.40 : x
  2. Step 2: Convert to fraction form
    48,860.40/68,542.80 = 48,860.40/x
  3. Step 3: Cross multiply
    48,860.40x = 68,542.80 × 48,860.40
  4. Step 4: Simplify right side
    48,860.40x = 3,349,028,625.12
  5. Step 5: Solve for x
    x = 3,349,028,625.12/48,860.40
  6. Step 6: Final answer
    x = 68,542.80

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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.