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Finding the Fourth Proportional to 46,692.48, 70,040.96 and 13,409.12

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Solution

The fourth proportional to 46,692.48, 70,040.96 and 13,409.12 is: 20,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,692.48 : 70,040.96 = 13,409.12 : x
  2. Step 2: Convert to fraction form
    46,692.48/70,040.96 = 13,409.12/x
  3. Step 3: Cross multiply
    46,692.48x = 70,040.96 × 13,409.12
  4. Step 4: Simplify right side
    46,692.48x = 939,187,637.56
  5. Step 5: Solve for x
    x = 939,187,637.56/46,692.48
  6. Step 6: Final answer
    x = 20,114.32

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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.