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Finding the Fourth Proportional to 71,059.70, 98,069.08 and 40,862.70

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Solution

The fourth proportional to 71,059.70, 98,069.08 and 40,862.70 is: 56,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,059.70 : 98,069.08 = 40,862.70 : x
  2. Step 2: Convert to fraction form
    71,059.70/98,069.08 = 40,862.70/x
  3. Step 3: Cross multiply
    71,059.70x = 98,069.08 × 40,862.70
  4. Step 4: Simplify right side
    71,059.70x = 4,007,367,395.32
  5. Step 5: Solve for x
    x = 4,007,367,395.32/71,059.70
  6. Step 6: Final answer
    x = 56,394.38

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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.