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Finding the Fourth Proportional to 25,846.79, 35,677.53 and 15,235.79

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Solution

The fourth proportional to 25,846.79, 35,677.53 and 15,235.79 is: 21,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,846.79 : 35,677.53 = 15,235.79 : x
  2. Step 2: Convert to fraction form
    25,846.79/35,677.53 = 15,235.79/x
  3. Step 3: Cross multiply
    25,846.79x = 35,677.53 × 15,235.79
  4. Step 4: Simplify right side
    25,846.79x = 543,575,176.41
  5. Step 5: Solve for x
    x = 543,575,176.41/25,846.79
  6. Step 6: Final answer
    x = 21,030.67

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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.