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Finding the Fourth Proportional to 64,951.47, 89,600.01 and 39,451.05

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Solution

The fourth proportional to 64,951.47, 89,600.01 and 39,451.05 is: 54,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.47 : 89,600.01 = 39,451.05 : x
  2. Step 2: Convert to fraction form
    64,951.47/89,600.01 = 39,451.05/x
  3. Step 3: Cross multiply
    64,951.47x = 89,600.01 × 39,451.05
  4. Step 4: Simplify right side
    64,951.47x = 3,534,814,698.51
  5. Step 5: Solve for x
    x = 3,534,814,698.51/64,951.47
  6. Step 6: Final answer
    x = 54,422.40

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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.