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Finding the Fourth Proportional to 35,809.50, 53,717.13 and 11,185.50

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Solution

The fourth proportional to 35,809.50, 53,717.13 and 11,185.50 is: 16,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,809.50 : 53,717.13 = 11,185.50 : x
  2. Step 2: Convert to fraction form
    35,809.50/53,717.13 = 11,185.50/x
  3. Step 3: Cross multiply
    35,809.50x = 53,717.13 × 11,185.50
  4. Step 4: Simplify right side
    35,809.50x = 600,852,957.62
  5. Step 5: Solve for x
    x = 600,852,957.62/35,809.50
  6. Step 6: Final answer
    x = 16,779.15

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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.