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Finding the Fourth Proportional to 71,069.94, 98,072.28 and 38,798.13

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Solution

The fourth proportional to 71,069.94, 98,072.28 and 38,798.13 is: 53,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.94 : 98,072.28 = 38,798.13 : x
  2. Step 2: Convert to fraction form
    71,069.94/98,072.28 = 38,798.13/x
  3. Step 3: Cross multiply
    71,069.94x = 98,072.28 × 38,798.13
  4. Step 4: Simplify right side
    71,069.94x = 3,805,021,068.84
  5. Step 5: Solve for x
    x = 3,805,021,068.84/71,069.94
  6. Step 6: Final answer
    x = 53,539.11

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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.