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Finding the Fourth Proportional to 14,040.04, 21,057.64 and 4,679

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Solution

The fourth proportional to 14,040.04, 21,057.64 and 4,679 is: 7,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.04 : 21,057.64 = 4,679 : x
  2. Step 2: Convert to fraction form
    14,040.04/21,057.64 = 4,679/x
  3. Step 3: Cross multiply
    14,040.04x = 21,057.64 × 4,679
  4. Step 4: Simplify right side
    14,040.04x = 98,528,697.56
  5. Step 5: Solve for x
    x = 98,528,697.56/14,040.04
  6. Step 6: Final answer
    x = 7,017.69

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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.