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Finding the Fourth Proportional to 14,990.65, 22,485.99 and 5,130.01

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Solution

The fourth proportional to 14,990.65, 22,485.99 and 5,130.01 is: 7,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.65 : 22,485.99 = 5,130.01 : x
  2. Step 2: Convert to fraction form
    14,990.65/22,485.99 = 5,130.01/x
  3. Step 3: Cross multiply
    14,990.65x = 22,485.99 × 5,130.01
  4. Step 4: Simplify right side
    14,990.65x = 115,353,353.56
  5. Step 5: Solve for x
    x = 115,353,353.56/14,990.65
  6. Step 6: Final answer
    x = 7,695.02

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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.