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Finding the Fourth Proportional to 63,718.90, 87,932.45 and 35,039.13

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Solution

The fourth proportional to 63,718.90, 87,932.45 and 35,039.13 is: 48,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,718.90 : 87,932.45 = 35,039.13 : x
  2. Step 2: Convert to fraction form
    63,718.90/87,932.45 = 35,039.13/x
  3. Step 3: Cross multiply
    63,718.90x = 87,932.45 × 35,039.13
  4. Step 4: Simplify right side
    63,718.90x = 3,081,076,546.77
  5. Step 5: Solve for x
    x = 3,081,076,546.77/63,718.90
  6. Step 6: Final answer
    x = 48,354.20

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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.