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Finding the Fourth Proportional to 39,752.79, 59,631.95 and 13,448.64

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Solution

The fourth proportional to 39,752.79, 59,631.95 and 13,448.64 is: 20,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.79 : 59,631.95 = 13,448.64 : x
  2. Step 2: Convert to fraction form
    39,752.79/59,631.95 = 13,448.64/x
  3. Step 3: Cross multiply
    39,752.79x = 59,631.95 × 13,448.64
  4. Step 4: Simplify right side
    39,752.79x = 801,968,560.80
  5. Step 5: Solve for x
    x = 801,968,560.80/39,752.79
  6. Step 6: Final answer
    x = 20,173.89

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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.