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Finding the Fourth Proportional to 67,249.36, 92,815.16 and 51,303.68

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Solution

The fourth proportional to 67,249.36, 92,815.16 and 51,303.68 is: 70,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,249.36 : 92,815.16 = 51,303.68 : x
  2. Step 2: Convert to fraction form
    67,249.36/92,815.16 = 51,303.68/x
  3. Step 3: Cross multiply
    67,249.36x = 92,815.16 × 51,303.68
  4. Step 4: Simplify right side
    67,249.36x = 4,761,759,267.79
  5. Step 5: Solve for x
    x = 4,761,759,267.79/67,249.36
  6. Step 6: Final answer
    x = 70,807.50

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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.