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Finding the Fourth Proportional to 64,303.40, 96,562.14 and 43,378.12

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Solution

The fourth proportional to 64,303.40, 96,562.14 and 43,378.12 is: 65,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,303.40 : 96,562.14 = 43,378.12 : x
  2. Step 2: Convert to fraction form
    64,303.40/96,562.14 = 43,378.12/x
  3. Step 3: Cross multiply
    64,303.40x = 96,562.14 × 43,378.12
  4. Step 4: Simplify right side
    64,303.40x = 4,188,684,096.38
  5. Step 5: Solve for x
    x = 4,188,684,096.38/64,303.40
  6. Step 6: Final answer
    x = 65,139.39

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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.