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Finding the Fourth Proportional to 70,969.13, 97,938.81 and 45,862.37

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Solution

The fourth proportional to 70,969.13, 97,938.81 and 45,862.37 is: 63,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969.13 : 97,938.81 = 45,862.37 : x
  2. Step 2: Convert to fraction form
    70,969.13/97,938.81 = 45,862.37/x
  3. Step 3: Cross multiply
    70,969.13x = 97,938.81 × 45,862.37
  4. Step 4: Simplify right side
    70,969.13x = 4,491,705,451.89
  5. Step 5: Solve for x
    x = 4,491,705,451.89/70,969.13
  6. Step 6: Final answer
    x = 63,290.98

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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.