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Finding the Fourth Proportional to 64,463.40, 96,695.10 and 36,815.40

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Solution

The fourth proportional to 64,463.40, 96,695.10 and 36,815.40 is: 55,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,463.40 : 96,695.10 = 36,815.40 : x
  2. Step 2: Convert to fraction form
    64,463.40/96,695.10 = 36,815.40/x
  3. Step 3: Cross multiply
    64,463.40x = 96,695.10 × 36,815.40
  4. Step 4: Simplify right side
    64,463.40x = 3,559,868,784.54
  5. Step 5: Solve for x
    x = 3,559,868,784.54/64,463.40
  6. Step 6: Final answer
    x = 55,223.10

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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.