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Finding the Fourth Proportional to 25,804.76, 38,707.20 and 7,085.05

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Solution

The fourth proportional to 25,804.76, 38,707.20 and 7,085.05 is: 10,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,804.76 : 38,707.20 = 7,085.05 : x
  2. Step 2: Convert to fraction form
    25,804.76/38,707.20 = 7,085.05/x
  3. Step 3: Cross multiply
    25,804.76x = 38,707.20 × 7,085.05
  4. Step 4: Simplify right side
    25,804.76x = 274,242,411.93
  5. Step 5: Solve for x
    x = 274,242,411.93/25,804.76
  6. Step 6: Final answer
    x = 10,627.59

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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.