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Finding the Fourth Proportional to 43,320.76, 65,007.06 and 39,795.64

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Solution

The fourth proportional to 43,320.76, 65,007.06 and 39,795.64 is: 59,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,320.76 : 65,007.06 = 39,795.64 : x
  2. Step 2: Convert to fraction form
    43,320.76/65,007.06 = 39,795.64/x
  3. Step 3: Cross multiply
    43,320.76x = 65,007.06 × 39,795.64
  4. Step 4: Simplify right side
    43,320.76x = 2,586,997,557.22
  5. Step 5: Solve for x
    x = 2,586,997,557.22/43,320.76
  6. Step 6: Final answer
    x = 59,717.27

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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.