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Finding the Fourth Proportional to 46,986.81, 70,479.81 and 11,925.96

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Solution

The fourth proportional to 46,986.81, 70,479.81 and 11,925.96 is: 17,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,986.81 : 70,479.81 = 11,925.96 : x
  2. Step 2: Convert to fraction form
    46,986.81/70,479.81 = 11,925.96/x
  3. Step 3: Cross multiply
    46,986.81x = 70,479.81 × 11,925.96
  4. Step 4: Simplify right side
    46,986.81x = 840,539,394.87
  5. Step 5: Solve for x
    x = 840,539,394.87/46,986.81
  6. Step 6: Final answer
    x = 17,888.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.