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Finding the Fourth Proportional to 86,686.36, 119,626.74 and 46,942.36

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Solution

The fourth proportional to 86,686.36, 119,626.74 and 46,942.36 is: 64,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,686.36 : 119,626.74 = 46,942.36 : x
  2. Step 2: Convert to fraction form
    86,686.36/119,626.74 = 46,942.36/x
  3. Step 3: Cross multiply
    86,686.36x = 119,626.74 × 46,942.36
  4. Step 4: Simplify right side
    86,686.36x = 5,615,561,494.71
  5. Step 5: Solve for x
    x = 5,615,561,494.71/86,686.36
  6. Step 6: Final answer
    x = 64,780.22

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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.