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Finding the Fourth Proportional to 70,528.93, 97,329.92 and 40,314.90

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Solution

The fourth proportional to 70,528.93, 97,329.92 and 40,314.90 is: 55,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,528.93 : 97,329.92 = 40,314.90 : x
  2. Step 2: Convert to fraction form
    70,528.93/97,329.92 = 40,314.90/x
  3. Step 3: Cross multiply
    70,528.93x = 97,329.92 × 40,314.90
  4. Step 4: Simplify right side
    70,528.93x = 3,923,845,991.81
  5. Step 5: Solve for x
    x = 3,923,845,991.81/70,528.93
  6. Step 6: Final answer
    x = 55,634.56

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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.