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Finding the Fourth Proportional to 64,870.56, 97,305.84 and 15,622.56

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Solution

The fourth proportional to 64,870.56, 97,305.84 and 15,622.56 is: 23,433.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,870.56 : 97,305.84 = 15,622.56 : x
  2. Step 2: Convert to fraction form
    64,870.56/97,305.84 = 15,622.56/x
  3. Step 3: Cross multiply
    64,870.56x = 97,305.84 × 15,622.56
  4. Step 4: Simplify right side
    64,870.56x = 1,520,166,323.75
  5. Step 5: Solve for x
    x = 1,520,166,323.75/64,870.56
  6. Step 6: Final answer
    x = 23,433.84

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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.