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Finding the Fourth Proportional to 35,811.60, 53,717.13 and 9,518.19

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Solution

The fourth proportional to 35,811.60, 53,717.13 and 9,518.19 is: 14,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.60 : 53,717.13 = 9,518.19 : x
  2. Step 2: Convert to fraction form
    35,811.60/53,717.13 = 9,518.19/x
  3. Step 3: Cross multiply
    35,811.60x = 53,717.13 × 9,518.19
  4. Step 4: Simplify right side
    35,811.60x = 511,289,849.59
  5. Step 5: Solve for x
    x = 511,289,849.59/35,811.60
  6. Step 6: Final answer
    x = 14,277.21

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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.