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Finding the Fourth Proportional to 63,085.61, 87,057.03 and 34,405.49

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Solution

The fourth proportional to 63,085.61, 87,057.03 and 34,405.49 is: 47,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,085.61 : 87,057.03 = 34,405.49 : x
  2. Step 2: Convert to fraction form
    63,085.61/87,057.03 = 34,405.49/x
  3. Step 3: Cross multiply
    63,085.61x = 87,057.03 × 34,405.49
  4. Step 4: Simplify right side
    63,085.61x = 2,995,239,339.81
  5. Step 5: Solve for x
    x = 2,995,239,339.81/63,085.61
  6. Step 6: Final answer
    x = 47,478.97

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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.