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Finding the Fourth Proportional to 25,916.40, 38,874.60 and 25,484.40

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Solution

The fourth proportional to 25,916.40, 38,874.60 and 25,484.40 is: 38,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,916.40 : 38,874.60 = 25,484.40 : x
  2. Step 2: Convert to fraction form
    25,916.40/38,874.60 = 25,484.40/x
  3. Step 3: Cross multiply
    25,916.40x = 38,874.60 × 25,484.40
  4. Step 4: Simplify right side
    25,916.40x = 990,695,856.24
  5. Step 5: Solve for x
    x = 990,695,856.24/25,916.40
  6. Step 6: Final answer
    x = 38,226.60

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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.