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Finding the Fourth Proportional to 73,465.61, 101,382.53 and 39,931.61

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Solution

The fourth proportional to 73,465.61, 101,382.53 and 39,931.61 is: 55,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,465.61 : 101,382.53 = 39,931.61 : x
  2. Step 2: Convert to fraction form
    73,465.61/101,382.53 = 39,931.61/x
  3. Step 3: Cross multiply
    73,465.61x = 101,382.53 × 39,931.61
  4. Step 4: Simplify right side
    73,465.61x = 4,048,366,942.20
  5. Step 5: Solve for x
    x = 4,048,366,942.20/73,465.61
  6. Step 6: Final answer
    x = 55,105.61

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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.