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Finding the Fourth Proportional to 10,373.02, 15,555.10 and 3,957.40

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Solution

The fourth proportional to 10,373.02, 15,555.10 and 3,957.40 is: 5,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,373.02 : 15,555.10 = 3,957.40 : x
  2. Step 2: Convert to fraction form
    10,373.02/15,555.10 = 3,957.40/x
  3. Step 3: Cross multiply
    10,373.02x = 15,555.10 × 3,957.40
  4. Step 4: Simplify right side
    10,373.02x = 61,557,752.74
  5. Step 5: Solve for x
    x = 61,557,752.74/10,373.02
  6. Step 6: Final answer
    x = 5,934.41

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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.