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Finding the Fourth Proportional to 52,606.54, 78,939.72 and 19,322.32

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Solution

The fourth proportional to 52,606.54, 78,939.72 and 19,322.32 is: 28,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,606.54 : 78,939.72 = 19,322.32 : x
  2. Step 2: Convert to fraction form
    52,606.54/78,939.72 = 19,322.32/x
  3. Step 3: Cross multiply
    52,606.54x = 78,939.72 × 19,322.32
  4. Step 4: Simplify right side
    52,606.54x = 1,525,298,530.55
  5. Step 5: Solve for x
    x = 1,525,298,530.55/52,606.54
  6. Step 6: Final answer
    x = 28,994.47

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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.