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Finding the Fourth Proportional to 65,501.63, 90,392.25 and 35,693.63

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Solution

The fourth proportional to 65,501.63, 90,392.25 and 35,693.63 is: 49,257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,501.63 : 90,392.25 = 35,693.63 : x
  2. Step 2: Convert to fraction form
    65,501.63/90,392.25 = 35,693.63/x
  3. Step 3: Cross multiply
    65,501.63x = 90,392.25 × 35,693.63
  4. Step 4: Simplify right side
    65,501.63x = 3,226,427,074.41
  5. Step 5: Solve for x
    x = 3,226,427,074.41/65,501.63
  6. Step 6: Final answer
    x = 49,257.21

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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.