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Finding the Fourth Proportional to 42,609.14, 58,811.16 and 29,019.67

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Solution

The fourth proportional to 42,609.14, 58,811.16 and 29,019.67 is: 40,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,609.14 : 58,811.16 = 29,019.67 : x
  2. Step 2: Convert to fraction form
    42,609.14/58,811.16 = 29,019.67/x
  3. Step 3: Cross multiply
    42,609.14x = 58,811.16 × 29,019.67
  4. Step 4: Simplify right side
    42,609.14x = 1,706,680,417.31
  5. Step 5: Solve for x
    x = 1,706,680,417.31/42,609.14
  6. Step 6: Final answer
    x = 40,054.33

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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.