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Finding the Fourth Proportional to 46,871.99, 70,308.26 and 19,169.99

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Solution

The fourth proportional to 46,871.99, 70,308.26 and 19,169.99 is: 28,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,871.99 : 70,308.26 = 19,169.99 : x
  2. Step 2: Convert to fraction form
    46,871.99/70,308.26 = 19,169.99/x
  3. Step 3: Cross multiply
    46,871.99x = 70,308.26 × 19,169.99
  4. Step 4: Simplify right side
    46,871.99x = 1,347,808,641.12
  5. Step 5: Solve for x
    x = 1,347,808,641.12/46,871.99
  6. Step 6: Final answer
    x = 28,755.10

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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.