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Finding the Fourth Proportional to 70,774.83, 97,658.11 and 40,554.33

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Solution

The fourth proportional to 70,774.83, 97,658.11 and 40,554.33 is: 55,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,774.83 : 97,658.11 = 40,554.33 : x
  2. Step 2: Convert to fraction form
    70,774.83/97,658.11 = 40,554.33/x
  3. Step 3: Cross multiply
    70,774.83x = 97,658.11 × 40,554.33
  4. Step 4: Simplify right side
    70,774.83x = 3,960,459,220.12
  5. Step 5: Solve for x
    x = 3,960,459,220.12/70,774.83
  6. Step 6: Final answer
    x = 55,958.58

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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.