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Finding the Fourth Proportional to 70,692.94, 97,554.94 and 38,861.16

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Solution

The fourth proportional to 70,692.94, 97,554.94 and 38,861.16 is: 53,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,692.94 : 97,554.94 = 38,861.16 : x
  2. Step 2: Convert to fraction form
    70,692.94/97,554.94 = 38,861.16/x
  3. Step 3: Cross multiply
    70,692.94x = 97,554.94 × 38,861.16
  4. Step 4: Simplify right side
    70,692.94x = 3,791,098,132.13
  5. Step 5: Solve for x
    x = 3,791,098,132.13/70,692.94
  6. Step 6: Final answer
    x = 53,627.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.