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Finding the Fourth Proportional to 25,973.84, 38,952.48 and 8,439.44

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Solution

The fourth proportional to 25,973.84, 38,952.48 and 8,439.44 is: 12,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,973.84 : 38,952.48 = 8,439.44 : x
  2. Step 2: Convert to fraction form
    25,973.84/38,952.48 = 8,439.44/x
  3. Step 3: Cross multiply
    25,973.84x = 38,952.48 × 8,439.44
  4. Step 4: Simplify right side
    25,973.84x = 328,737,117.81
  5. Step 5: Solve for x
    x = 328,737,117.81/25,973.84
  6. Step 6: Final answer
    x = 12,656.47

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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.