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Finding the Fourth Proportional to 67,798.50, 93,561.93 and 39,504.20

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Solution

The fourth proportional to 67,798.50, 93,561.93 and 39,504.20 is: 54,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,798.50 : 93,561.93 = 39,504.20 : x
  2. Step 2: Convert to fraction form
    67,798.50/93,561.93 = 39,504.20/x
  3. Step 3: Cross multiply
    67,798.50x = 93,561.93 × 39,504.20
  4. Step 4: Simplify right side
    67,798.50x = 3,696,088,727.30
  5. Step 5: Solve for x
    x = 3,696,088,727.30/67,798.50
  6. Step 6: Final answer
    x = 54,515.79

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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.