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Finding the Fourth Proportional to 64,710.81, 89,302.86 and 35,244.48

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Solution

The fourth proportional to 64,710.81, 89,302.86 and 35,244.48 is: 48,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.81 : 89,302.86 = 35,244.48 : x
  2. Step 2: Convert to fraction form
    64,710.81/89,302.86 = 35,244.48/x
  3. Step 3: Cross multiply
    64,710.81x = 89,302.86 × 35,244.48
  4. Step 4: Simplify right side
    64,710.81x = 3,147,432,863.21
  5. Step 5: Solve for x
    x = 3,147,432,863.21/64,710.81
  6. Step 6: Final answer
    x = 48,638.44

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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.