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Finding the Fourth Proportional to 14,023.55, 21,030.78 and 4,661.06

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Solution

The fourth proportional to 14,023.55, 21,030.78 and 4,661.06 is: 6,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,023.55 : 21,030.78 = 4,661.06 : x
  2. Step 2: Convert to fraction form
    14,023.55/21,030.78 = 4,661.06/x
  3. Step 3: Cross multiply
    14,023.55x = 21,030.78 × 4,661.06
  4. Step 4: Simplify right side
    14,023.55x = 98,025,622.27
  5. Step 5: Solve for x
    x = 98,025,622.27/14,023.55
  6. Step 6: Final answer
    x = 6,990.07

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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.