Home / 43,657.04-65,430.76-18,667.69

Finding the Fourth Proportional to 43,657.04, 65,430.76 and 18,667.69

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Solution

The fourth proportional to 43,657.04, 65,430.76 and 18,667.69 is: 27,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,657.04 : 65,430.76 = 18,667.69 : x
  2. Step 2: Convert to fraction form
    43,657.04/65,430.76 = 18,667.69/x
  3. Step 3: Cross multiply
    43,657.04x = 65,430.76 × 18,667.69
  4. Step 4: Simplify right side
    43,657.04x = 1,221,441,331.06
  5. Step 5: Solve for x
    x = 1,221,441,331.06/43,657.04
  6. Step 6: Final answer
    x = 27,978.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.