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Finding the Fourth Proportional to 71,022.95, 98,008.34 and 40,786.95

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Solution

The fourth proportional to 71,022.95, 98,008.34 and 40,786.95 is: 56,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.95 : 98,008.34 = 40,786.95 : x
  2. Step 2: Convert to fraction form
    71,022.95/98,008.34 = 40,786.95/x
  3. Step 3: Cross multiply
    71,022.95x = 98,008.34 × 40,786.95
  4. Step 4: Simplify right side
    71,022.95x = 3,997,461,059.23
  5. Step 5: Solve for x
    x = 3,997,461,059.23/71,022.95
  6. Step 6: Final answer
    x = 56,284.08

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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.