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Finding the Fourth Proportional to 65,247.40, 97,871.10 and 51,250.60

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Solution

The fourth proportional to 65,247.40, 97,871.10 and 51,250.60 is: 76,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,247.40 : 97,871.10 = 51,250.60 : x
  2. Step 2: Convert to fraction form
    65,247.40/97,871.10 = 51,250.60/x
  3. Step 3: Cross multiply
    65,247.40x = 97,871.10 × 51,250.60
  4. Step 4: Simplify right side
    65,247.40x = 5,015,952,597.66
  5. Step 5: Solve for x
    x = 5,015,952,597.66/65,247.40
  6. Step 6: Final answer
    x = 76,875.90

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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.