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Finding the Fourth Proportional to 67,692.16, 101,538.40 and 18,444.16

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Solution

The fourth proportional to 67,692.16, 101,538.40 and 18,444.16 is: 27,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,692.16 : 101,538.40 = 18,444.16 : x
  2. Step 2: Convert to fraction form
    67,692.16/101,538.40 = 18,444.16/x
  3. Step 3: Cross multiply
    67,692.16x = 101,538.40 × 18,444.16
  4. Step 4: Simplify right side
    67,692.16x = 1,872,790,495.74
  5. Step 5: Solve for x
    x = 1,872,790,495.74/67,692.16
  6. Step 6: Final answer
    x = 27,666.28

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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.