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Finding the Fourth Proportional to 15,428.01, 23,139.08 and 7,522.57

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Solution

The fourth proportional to 15,428.01, 23,139.08 and 7,522.57 is: 11,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.01 : 23,139.08 = 7,522.57 : x
  2. Step 2: Convert to fraction form
    15,428.01/23,139.08 = 7,522.57/x
  3. Step 3: Cross multiply
    15,428.01x = 23,139.08 × 7,522.57
  4. Step 4: Simplify right side
    15,428.01x = 174,065,349.04
  5. Step 5: Solve for x
    x = 174,065,349.04/15,428.01
  6. Step 6: Final answer
    x = 11,282.42

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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.