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Finding the Fourth Proportional to 61,803.46, 85,288.96 and 33,509.16

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Solution

The fourth proportional to 61,803.46, 85,288.96 and 33,509.16 is: 46,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.46 : 85,288.96 = 33,509.16 : x
  2. Step 2: Convert to fraction form
    61,803.46/85,288.96 = 33,509.16/x
  3. Step 3: Cross multiply
    61,803.46x = 85,288.96 × 33,509.16
  4. Step 4: Simplify right side
    61,803.46x = 2,857,961,406.87
  5. Step 5: Solve for x
    x = 2,857,961,406.87/61,803.46
  6. Step 6: Final answer
    x = 46,242.74

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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.