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Finding the Fourth Proportional to 70,246.84, 96,939.28 and 38,415.64

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Solution

The fourth proportional to 70,246.84, 96,939.28 and 38,415.64 is: 53,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,246.84 : 96,939.28 = 38,415.64 : x
  2. Step 2: Convert to fraction form
    70,246.84/96,939.28 = 38,415.64/x
  3. Step 3: Cross multiply
    70,246.84x = 96,939.28 × 38,415.64
  4. Step 4: Simplify right side
    70,246.84x = 3,723,984,482.34
  5. Step 5: Solve for x
    x = 3,723,984,482.34/70,246.84
  6. Step 6: Final answer
    x = 53,012.84

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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.