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Finding the Fourth Proportional to 25,870.58, 38,804.78 and 7,402.58

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Solution

The fourth proportional to 25,870.58, 38,804.78 and 7,402.58 is: 11,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.58 : 38,804.78 = 7,402.58 : x
  2. Step 2: Convert to fraction form
    25,870.58/38,804.78 = 7,402.58/x
  3. Step 3: Cross multiply
    25,870.58x = 38,804.78 × 7,402.58
  4. Step 4: Simplify right side
    25,870.58x = 287,255,488.33
  5. Step 5: Solve for x
    x = 287,255,488.33/25,870.58
  6. Step 6: Final answer
    x = 11,103.56

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1.5x scale

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.