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Finding the Fourth Proportional to 70,588.49, 97,412.29 and 38,759.44

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Solution

The fourth proportional to 70,588.49, 97,412.29 and 38,759.44 is: 53,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,588.49 : 97,412.29 = 38,759.44 : x
  2. Step 2: Convert to fraction form
    70,588.49/97,412.29 = 38,759.44/x
  3. Step 3: Cross multiply
    70,588.49x = 97,412.29 × 38,759.44
  4. Step 4: Simplify right side
    70,588.49x = 3,775,645,809.52
  5. Step 5: Solve for x
    x = 3,775,645,809.52/70,588.49
  6. Step 6: Final answer
    x = 53,488.12

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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.