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Finding the Fourth Proportional to 52,580.40, 78,870.60 and 26,336.40

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Solution

The fourth proportional to 52,580.40, 78,870.60 and 26,336.40 is: 39,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,580.40 : 78,870.60 = 26,336.40 : x
  2. Step 2: Convert to fraction form
    52,580.40/78,870.60 = 26,336.40/x
  3. Step 3: Cross multiply
    52,580.40x = 78,870.60 × 26,336.40
  4. Step 4: Simplify right side
    52,580.40x = 2,077,167,669.84
  5. Step 5: Solve for x
    x = 2,077,167,669.84/52,580.40
  6. Step 6: Final answer
    x = 39,504.60

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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.