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Finding the Fourth Proportional to 84,851.57, 117,068.82 and 49,028.51

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Solution

The fourth proportional to 84,851.57, 117,068.82 and 49,028.51 is: 67,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,851.57 : 117,068.82 = 49,028.51 : x
  2. Step 2: Convert to fraction form
    84,851.57/117,068.82 = 49,028.51/x
  3. Step 3: Cross multiply
    84,851.57x = 117,068.82 × 49,028.51
  4. Step 4: Simplify right side
    84,851.57x = 5,739,709,226.71
  5. Step 5: Solve for x
    x = 5,739,709,226.71/84,851.57
  6. Step 6: Final answer
    x = 67,644.12

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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.