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Finding the Fourth Proportional to 25,955.52, 38,938.08 and 8,423.04

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Solution

The fourth proportional to 25,955.52, 38,938.08 and 8,423.04 is: 12,636.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,955.52 : 38,938.08 = 8,423.04 : x
  2. Step 2: Convert to fraction form
    25,955.52/38,938.08 = 8,423.04/x
  3. Step 3: Cross multiply
    25,955.52x = 38,938.08 × 8,423.04
  4. Step 4: Simplify right side
    25,955.52x = 327,977,005.36
  5. Step 5: Solve for x
    x = 327,977,005.36/25,955.52
  6. Step 6: Final answer
    x = 12,636.12

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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.