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Finding the Fourth Proportional to 48,283.48, 66,622.26 and 31,070.98

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Solution

The fourth proportional to 48,283.48, 66,622.26 and 31,070.98 is: 42,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,283.48 : 66,622.26 = 31,070.98 : x
  2. Step 2: Convert to fraction form
    48,283.48/66,622.26 = 31,070.98/x
  3. Step 3: Cross multiply
    48,283.48x = 66,622.26 × 31,070.98
  4. Step 4: Simplify right side
    48,283.48x = 2,070,018,908.01
  5. Step 5: Solve for x
    x = 2,070,018,908.01/48,283.48
  6. Step 6: Final answer
    x = 42,872.20

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