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Finding the Fourth Proportional to 70,266.72, 96,966.81 and 38,435.34

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Solution

The fourth proportional to 70,266.72, 96,966.81 and 38,435.34 is: 53,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,266.72 : 96,966.81 = 38,435.34 : x
  2. Step 2: Convert to fraction form
    70,266.72/96,966.81 = 38,435.34/x
  3. Step 3: Cross multiply
    70,266.72x = 96,966.81 × 38,435.34
  4. Step 4: Simplify right side
    70,266.72x = 3,726,952,311.07
  5. Step 5: Solve for x
    x = 3,726,952,311.07/70,266.72
  6. Step 6: Final answer
    x = 53,040.08

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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.