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Finding the Fourth Proportional to 64,853.39, 89,484.05 and 39,373.16

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Solution

The fourth proportional to 64,853.39, 89,484.05 and 39,373.16 is: 54,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,853.39 : 89,484.05 = 39,373.16 : x
  2. Step 2: Convert to fraction form
    64,853.39/89,484.05 = 39,373.16/x
  3. Step 3: Cross multiply
    64,853.39x = 89,484.05 × 39,373.16
  4. Step 4: Simplify right side
    64,853.39x = 3,523,269,469.11
  5. Step 5: Solve for x
    x = 3,523,269,469.11/64,853.39
  6. Step 6: Final answer
    x = 54,326.68

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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.