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Finding the Fourth Proportional to 48,340.82, 66,742.88 and 36,990.06

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Solution

The fourth proportional to 48,340.82, 66,742.88 and 36,990.06 is: 51,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,340.82 : 66,742.88 = 36,990.06 : x
  2. Step 2: Convert to fraction form
    48,340.82/66,742.88 = 36,990.06/x
  3. Step 3: Cross multiply
    48,340.82x = 66,742.88 × 36,990.06
  4. Step 4: Simplify right side
    48,340.82x = 2,468,822,950.82
  5. Step 5: Solve for x
    x = 2,468,822,950.82/48,340.82
  6. Step 6: Final answer
    x = 51,071.19

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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.