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Finding the Fourth Proportional to 25,381.07, 38,071.60 and 6,913.07

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Solution

The fourth proportional to 25,381.07, 38,071.60 and 6,913.07 is: 10,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.07 : 38,071.60 = 6,913.07 : x
  2. Step 2: Convert to fraction form
    25,381.07/38,071.60 = 6,913.07/x
  3. Step 3: Cross multiply
    25,381.07x = 38,071.60 × 6,913.07
  4. Step 4: Simplify right side
    25,381.07x = 263,191,410.89
  5. Step 5: Solve for x
    x = 263,191,410.89/25,381.07
  6. Step 6: Final answer
    x = 10,369.60

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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.