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Finding the Fourth Proportional to 30,666.71, 46,017.92 and 12,896.08

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Solution

The fourth proportional to 30,666.71, 46,017.92 and 12,896.08 is: 19,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.71 : 46,017.92 = 12,896.08 : x
  2. Step 2: Convert to fraction form
    30,666.71/46,017.92 = 12,896.08/x
  3. Step 3: Cross multiply
    30,666.71x = 46,017.92 × 12,896.08
  4. Step 4: Simplify right side
    30,666.71x = 593,450,483.18
  5. Step 5: Solve for x
    x = 593,450,483.18/30,666.71
  6. Step 6: Final answer
    x = 19,351.62

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1.5x scale

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.