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Finding the Fourth Proportional to 48,475.44, 72,713.15 and 13,415.10

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Solution

The fourth proportional to 48,475.44, 72,713.15 and 13,415.10 is: 20,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,475.44 : 72,713.15 = 13,415.10 : x
  2. Step 2: Convert to fraction form
    48,475.44/72,713.15 = 13,415.10/x
  3. Step 3: Cross multiply
    48,475.44x = 72,713.15 × 13,415.10
  4. Step 4: Simplify right side
    48,475.44x = 975,454,178.57
  5. Step 5: Solve for x
    x = 975,454,178.57/48,475.44
  6. Step 6: Final answer
    x = 20,122.65

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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.