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Finding the Fourth Proportional to 10,230.63, 15,349.54 and 5,040.15

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Solution

The fourth proportional to 10,230.63, 15,349.54 and 5,040.15 is: 7,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,230.63 : 15,349.54 = 5,040.15 : x
  2. Step 2: Convert to fraction form
    10,230.63/15,349.54 = 5,040.15/x
  3. Step 3: Cross multiply
    10,230.63x = 15,349.54 × 5,040.15
  4. Step 4: Simplify right side
    10,230.63x = 77,363,984.03
  5. Step 5: Solve for x
    x = 77,363,984.03/10,230.63
  6. Step 6: Final answer
    x = 7,562.00

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1.5x scale

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.