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Finding the Fourth Proportional to 71,360.74, 98,476.59 and 39,528.97

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Solution

The fourth proportional to 71,360.74, 98,476.59 and 39,528.97 is: 54,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,360.74 : 98,476.59 = 39,528.97 : x
  2. Step 2: Convert to fraction form
    71,360.74/98,476.59 = 39,528.97/x
  3. Step 3: Cross multiply
    71,360.74x = 98,476.59 × 39,528.97
  4. Step 4: Simplify right side
    71,360.74x = 3,892,678,171.81
  5. Step 5: Solve for x
    x = 3,892,678,171.81/71,360.74
  6. Step 6: Final answer
    x = 54,549.30

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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.