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Finding the Fourth Proportional to 64,199.72, 88,630.44 and 38,710.64

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Solution

The fourth proportional to 64,199.72, 88,630.44 and 38,710.64 is: 53,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,199.72 : 88,630.44 = 38,710.64 : x
  2. Step 2: Convert to fraction form
    64,199.72/88,630.44 = 38,710.64/x
  3. Step 3: Cross multiply
    64,199.72x = 88,630.44 × 38,710.64
  4. Step 4: Simplify right side
    64,199.72x = 3,430,941,055.88
  5. Step 5: Solve for x
    x = 3,430,941,055.88/64,199.72
  6. Step 6: Final answer
    x = 53,441.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.