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Finding the Fourth Proportional to 70,744.66, 97,625.59 and 38,913.55

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Solution

The fourth proportional to 70,744.66, 97,625.59 and 38,913.55 is: 53,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,744.66 : 97,625.59 = 38,913.55 : x
  2. Step 2: Convert to fraction form
    70,744.66/97,625.59 = 38,913.55/x
  3. Step 3: Cross multiply
    70,744.66x = 97,625.59 × 38,913.55
  4. Step 4: Simplify right side
    70,744.66x = 3,798,958,277.74
  5. Step 5: Solve for x
    x = 3,798,958,277.74/70,744.66
  6. Step 6: Final answer
    x = 53,699.58

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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.