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Finding the Fourth Proportional to 71,397.84, 98,497.32 and 45,899.48

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Solution

The fourth proportional to 71,397.84, 98,497.32 and 45,899.48 is: 63,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,397.84 : 98,497.32 = 45,899.48 : x
  2. Step 2: Convert to fraction form
    71,397.84/98,497.32 = 45,899.48/x
  3. Step 3: Cross multiply
    71,397.84x = 98,497.32 × 45,899.48
  4. Step 4: Simplify right side
    71,397.84x = 4,520,975,769.39
  5. Step 5: Solve for x
    x = 4,520,975,769.39/71,397.84
  6. Step 6: Final answer
    x = 63,320.90

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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.