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Finding the Fourth Proportional to 15,369.90, 23,061.74 and 7,468.08

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Solution

The fourth proportional to 15,369.90, 23,061.74 and 7,468.08 is: 11,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.90 : 23,061.74 = 7,468.08 : x
  2. Step 2: Convert to fraction form
    15,369.90/23,061.74 = 7,468.08/x
  3. Step 3: Cross multiply
    15,369.90x = 23,061.74 × 7,468.08
  4. Step 4: Simplify right side
    15,369.90x = 172,226,919.26
  5. Step 5: Solve for x
    x = 172,226,919.26/15,369.90
  6. Step 6: Final answer
    x = 11,205.47

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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.