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Finding the Fourth Proportional to 71,041.70, 98,037.34 and 39,210.38

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Solution

The fourth proportional to 71,041.70, 98,037.34 and 39,210.38 is: 54,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,041.70 : 98,037.34 = 39,210.38 : x
  2. Step 2: Convert to fraction form
    71,041.70/98,037.34 = 39,210.38/x
  3. Step 3: Cross multiply
    71,041.70x = 98,037.34 × 39,210.38
  4. Step 4: Simplify right side
    71,041.70x = 3,844,081,355.59
  5. Step 5: Solve for x
    x = 3,844,081,355.59/71,041.70
  6. Step 6: Final answer
    x = 54,110.21

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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.