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Finding the Fourth Proportional to 71,341.73, 98,451.54 and 39,510.59

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Solution

The fourth proportional to 71,341.73, 98,451.54 and 39,510.59 is: 54,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.73 : 98,451.54 = 39,510.59 : x
  2. Step 2: Convert to fraction form
    71,341.73/98,451.54 = 39,510.59/x
  3. Step 3: Cross multiply
    71,341.73x = 98,451.54 × 39,510.59
  4. Step 4: Simplify right side
    71,341.73x = 3,889,878,677.94
  5. Step 5: Solve for x
    x = 3,889,878,677.94/71,341.73
  6. Step 6: Final answer
    x = 54,524.60

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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.