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Finding the Fourth Proportional to 10,605.53, 15,908.30 and 4,030.16

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Solution

The fourth proportional to 10,605.53, 15,908.30 and 4,030.16 is: 6,045.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.53 : 15,908.30 = 4,030.16 : x
  2. Step 2: Convert to fraction form
    10,605.53/15,908.30 = 4,030.16/x
  3. Step 3: Cross multiply
    10,605.53x = 15,908.30 × 4,030.16
  4. Step 4: Simplify right side
    10,605.53x = 64,112,909.75
  5. Step 5: Solve for x
    x = 64,112,909.75/10,605.53
  6. Step 6: Final answer
    x = 6,045.23

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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.