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Finding the Fourth Proportional to 9,428.00, 14,130.05 and 9,182.70

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Solution

The fourth proportional to 9,428.00, 14,130.05 and 9,182.70 is: 13,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.00 : 14,130.05 = 9,182.70 : x
  2. Step 2: Convert to fraction form
    9,428.00/14,130.05 = 9,182.70/x
  3. Step 3: Cross multiply
    9,428.00x = 14,130.05 × 9,182.70
  4. Step 4: Simplify right side
    9,428.00x = 129,751,964.22
  5. Step 5: Solve for x
    x = 129,751,964.22/9,428.00
  6. Step 6: Final answer
    x = 13,762.41

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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.