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Finding the Fourth Proportional to 70,620.90, 97,475.34 and 43,748.16

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Solution

The fourth proportional to 70,620.90, 97,475.34 and 43,748.16 is: 60,383.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.90 : 97,475.34 = 43,748.16 : x
  2. Step 2: Convert to fraction form
    70,620.90/97,475.34 = 43,748.16/x
  3. Step 3: Cross multiply
    70,620.90x = 97,475.34 × 43,748.16
  4. Step 4: Simplify right side
    70,620.90x = 4,264,366,770.37
  5. Step 5: Solve for x
    x = 4,264,366,770.37/70,620.90
  6. Step 6: Final answer
    x = 60,383.92

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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.