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Finding the Fourth Proportional to 35,655.12, 53,478.72 and 9,362.88

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Solution

The fourth proportional to 35,655.12, 53,478.72 and 9,362.88 is: 14,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,655.12 : 53,478.72 = 9,362.88 : x
  2. Step 2: Convert to fraction form
    35,655.12/53,478.72 = 9,362.88/x
  3. Step 3: Cross multiply
    35,655.12x = 53,478.72 × 9,362.88
  4. Step 4: Simplify right side
    35,655.12x = 500,714,837.91
  5. Step 5: Solve for x
    x = 500,714,837.91/35,655.12
  6. Step 6: Final answer
    x = 14,043.28

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