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Finding the Fourth Proportional to 70,969.50, 97,938.63 and 42,675.66

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Solution

The fourth proportional to 70,969.50, 97,938.63 and 42,675.66 is: 58,892.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969.50 : 97,938.63 = 42,675.66 : x
  2. Step 2: Convert to fraction form
    70,969.50/97,938.63 = 42,675.66/x
  3. Step 3: Cross multiply
    70,969.50x = 97,938.63 × 42,675.66
  4. Step 4: Simplify right side
    70,969.50x = 4,179,595,674.75
  5. Step 5: Solve for x
    x = 4,179,595,674.75/70,969.50
  6. Step 6: Final answer
    x = 58,892.84

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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.