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Finding the Fourth Proportional to 35,505.99, 53,259.80 and 9,211.77

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Solution

The fourth proportional to 35,505.99, 53,259.80 and 9,211.77 is: 13,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,505.99 : 53,259.80 = 9,211.77 : x
  2. Step 2: Convert to fraction form
    35,505.99/53,259.80 = 9,211.77/x
  3. Step 3: Cross multiply
    35,505.99x = 53,259.80 × 9,211.77
  4. Step 4: Simplify right side
    35,505.99x = 490,616,981.79
  5. Step 5: Solve for x
    x = 490,616,981.79/35,505.99
  6. Step 6: Final answer
    x = 13,817.87

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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.