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Finding the Fourth Proportional to 35,438.99, 53,159.18 and 10,479.02

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Solution

The fourth proportional to 35,438.99, 53,159.18 and 10,479.02 is: 15,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,438.99 : 53,159.18 = 10,479.02 : x
  2. Step 2: Convert to fraction form
    35,438.99/53,159.18 = 10,479.02/x
  3. Step 3: Cross multiply
    35,438.99x = 53,159.18 × 10,479.02
  4. Step 4: Simplify right side
    35,438.99x = 557,055,792.21
  5. Step 5: Solve for x
    x = 557,055,792.21/35,438.99
  6. Step 6: Final answer
    x = 15,718.73

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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.