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Finding the Fourth Proportional to 71,175.12, 97,938.36 and 69,010.80

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Solution

The fourth proportional to 71,175.12, 97,938.36 and 69,010.80 is: 94,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.12 : 97,938.36 = 69,010.80 : x
  2. Step 2: Convert to fraction form
    71,175.12/97,938.36 = 69,010.80/x
  3. Step 3: Cross multiply
    71,175.12x = 97,938.36 × 69,010.80
  4. Step 4: Simplify right side
    71,175.12x = 6,758,804,574.29
  5. Step 5: Solve for x
    x = 6,758,804,574.29/71,175.12
  6. Step 6: Final answer
    x = 94,960.21

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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.