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Finding the Fourth Proportional to 10,653.80, 15,980.70 and 9,732.20

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Solution

The fourth proportional to 10,653.80, 15,980.70 and 9,732.20 is: 14,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.80 : 15,980.70 = 9,732.20 : x
  2. Step 2: Convert to fraction form
    10,653.80/15,980.70 = 9,732.20/x
  3. Step 3: Cross multiply
    10,653.80x = 15,980.70 × 9,732.20
  4. Step 4: Simplify right side
    10,653.80x = 155,527,368.54
  5. Step 5: Solve for x
    x = 155,527,368.54/10,653.80
  6. Step 6: Final answer
    x = 14,598.30

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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.