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Finding the Fourth Proportional to 70,243.21, 96,935.59 and 38,412.11

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Solution

The fourth proportional to 70,243.21, 96,935.59 and 38,412.11 is: 53,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,243.21 : 96,935.59 = 38,412.11 : x
  2. Step 2: Convert to fraction form
    70,243.21/96,935.59 = 38,412.11/x
  3. Step 3: Cross multiply
    70,243.21x = 96,935.59 × 38,412.11
  4. Step 4: Simplify right side
    70,243.21x = 3,723,500,075.02
  5. Step 5: Solve for x
    x = 3,723,500,075.02/70,243.21
  6. Step 6: Final answer
    x = 53,008.68

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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.