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Finding the Fourth Proportional to 46,692.79, 70,039.67 and 13,412.79

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Solution

The fourth proportional to 46,692.79, 70,039.67 and 13,412.79 is: 20,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,692.79 : 70,039.67 = 13,412.79 : x
  2. Step 2: Convert to fraction form
    46,692.79/70,039.67 = 13,412.79/x
  3. Step 3: Cross multiply
    46,692.79x = 70,039.67 × 13,412.79
  4. Step 4: Simplify right side
    46,692.79x = 939,427,318.32
  5. Step 5: Solve for x
    x = 939,427,318.32/46,692.79
  6. Step 6: Final answer
    x = 20,119.32

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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.