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Finding the Fourth Proportional to 48,724.50, 67,239.90 and 26,368.50

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Solution

The fourth proportional to 48,724.50, 67,239.90 and 26,368.50 is: 36,388.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,724.50 : 67,239.90 = 26,368.50 : x
  2. Step 2: Convert to fraction form
    48,724.50/67,239.90 = 26,368.50/x
  3. Step 3: Cross multiply
    48,724.50x = 67,239.90 × 26,368.50
  4. Step 4: Simplify right side
    48,724.50x = 1,773,015,303.15
  5. Step 5: Solve for x
    x = 1,773,015,303.15/48,724.50
  6. Step 6: Final answer
    x = 36,388.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.