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Finding the Fourth Proportional to 62,716.32, 86,548 and 34,420.32

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Solution

The fourth proportional to 62,716.32, 86,548 and 34,420.32 is: 47,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,716.32 : 86,548 = 34,420.32 : x
  2. Step 2: Convert to fraction form
    62,716.32/86,548 = 34,420.32/x
  3. Step 3: Cross multiply
    62,716.32x = 86,548 × 34,420.32
  4. Step 4: Simplify right side
    62,716.32x = 2,979,009,855.36
  5. Step 5: Solve for x
    x = 2,979,009,855.36/62,716.32
  6. Step 6: Final answer
    x = 47,499.76

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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.