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Finding the Fourth Proportional to 25,998.40, 39,007.20 and 25,038.40

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Solution

The fourth proportional to 25,998.40, 39,007.20 and 25,038.40 is: 37,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,998.40 : 39,007.20 = 25,038.40 : x
  2. Step 2: Convert to fraction form
    25,998.40/39,007.20 = 25,038.40/x
  3. Step 3: Cross multiply
    25,998.40x = 39,007.20 × 25,038.40
  4. Step 4: Simplify right side
    25,998.40x = 976,677,876.48
  5. Step 5: Solve for x
    x = 976,677,876.48/25,998.40
  6. Step 6: Final answer
    x = 37,566.85

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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.