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Finding the Fourth Proportional to 64,681.13, 89,246.49 and 37,818.42

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Solution

The fourth proportional to 64,681.13, 89,246.49 and 37,818.42 is: 52,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.13 : 89,246.49 = 37,818.42 : x
  2. Step 2: Convert to fraction form
    64,681.13/89,246.49 = 37,818.42/x
  3. Step 3: Cross multiply
    64,681.13x = 89,246.49 × 37,818.42
  4. Step 4: Simplify right side
    64,681.13x = 3,375,161,242.35
  5. Step 5: Solve for x
    x = 3,375,161,242.35/64,681.13
  6. Step 6: Final answer
    x = 52,181.55

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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.