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Finding the Fourth Proportional to 25,430.40, 38,103.84 and 24,458.40

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Solution

The fourth proportional to 25,430.40, 38,103.84 and 24,458.40 is: 36,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.40 : 38,103.84 = 24,458.40 : x
  2. Step 2: Convert to fraction form
    25,430.40/38,103.84 = 24,458.40/x
  3. Step 3: Cross multiply
    25,430.40x = 38,103.84 × 24,458.40
  4. Step 4: Simplify right side
    25,430.40x = 931,958,960.26
  5. Step 5: Solve for x
    x = 931,958,960.26/25,430.40
  6. Step 6: Final answer
    x = 36,647.44

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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.