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Finding the Fourth Proportional to 71,612.58, 98,817.76 and 41,393.10

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Solution

The fourth proportional to 71,612.58, 98,817.76 and 41,393.10 is: 57,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612.58 : 98,817.76 = 41,393.10 : x
  2. Step 2: Convert to fraction form
    71,612.58/98,817.76 = 41,393.10/x
  3. Step 3: Cross multiply
    71,612.58x = 98,817.76 × 41,393.10
  4. Step 4: Simplify right side
    71,612.58x = 4,090,373,421.46
  5. Step 5: Solve for x
    x = 4,090,373,421.46/71,612.58
  6. Step 6: Final answer
    x = 57,118.08

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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.