Home / 66,501.56-99,768.60-22,128.20

Finding the Fourth Proportional to 66,501.56, 99,768.60 and 22,128.20

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Solution

The fourth proportional to 66,501.56, 99,768.60 and 22,128.20 is: 33,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,501.56 : 99,768.60 = 22,128.20 : x
  2. Step 2: Convert to fraction form
    66,501.56/99,768.60 = 22,128.20/x
  3. Step 3: Cross multiply
    66,501.56x = 99,768.60 × 22,128.20
  4. Step 4: Simplify right side
    66,501.56x = 2,207,699,534.52
  5. Step 5: Solve for x
    x = 2,207,699,534.52/66,501.56
  6. Step 6: Final answer
    x = 33,197.71

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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.