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Finding the Fourth Proportional to 25,947.01, 38,925.98 and 8,415.47

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Solution

The fourth proportional to 25,947.01, 38,925.98 and 8,415.47 is: 12,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.01 : 38,925.98 = 8,415.47 : x
  2. Step 2: Convert to fraction form
    25,947.01/38,925.98 = 8,415.47/x
  3. Step 3: Cross multiply
    25,947.01x = 38,925.98 × 8,415.47
  4. Step 4: Simplify right side
    25,947.01x = 327,580,535.26
  5. Step 5: Solve for x
    x = 327,580,535.26/25,947.01
  6. Step 6: Final answer
    x = 12,624.98

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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.