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Finding the Fourth Proportional to 25,673.10, 38,509.65 and 12,551.10

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Solution

The fourth proportional to 25,673.10, 38,509.65 and 12,551.10 is: 18,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.10 : 38,509.65 = 12,551.10 : x
  2. Step 2: Convert to fraction form
    25,673.10/38,509.65 = 12,551.10/x
  3. Step 3: Cross multiply
    25,673.10x = 38,509.65 × 12,551.10
  4. Step 4: Simplify right side
    25,673.10x = 483,338,468.12
  5. Step 5: Solve for x
    x = 483,338,468.12/25,673.10
  6. Step 6: Final answer
    x = 18,826.65

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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.