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Finding the Fourth Proportional to 67,449.84, 93,085.80 and 39,159.84

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Solution

The fourth proportional to 67,449.84, 93,085.80 and 39,159.84 is: 54,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,449.84 : 93,085.80 = 39,159.84 : x
  2. Step 2: Convert to fraction form
    67,449.84/93,085.80 = 39,159.84/x
  3. Step 3: Cross multiply
    67,449.84x = 93,085.80 × 39,159.84
  4. Step 4: Simplify right side
    67,449.84x = 3,645,225,034.27
  5. Step 5: Solve for x
    x = 3,645,225,034.27/67,449.84
  6. Step 6: Final answer
    x = 54,043.49

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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.