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Finding the Fourth Proportional to 15,152.40, 22,723.74 and 13,208.40

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Solution

The fourth proportional to 15,152.40, 22,723.74 and 13,208.40 is: 19,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.40 : 22,723.74 = 13,208.40 : x
  2. Step 2: Convert to fraction form
    15,152.40/22,723.74 = 13,208.40/x
  3. Step 3: Cross multiply
    15,152.40x = 22,723.74 × 13,208.40
  4. Step 4: Simplify right side
    15,152.40x = 300,144,247.42
  5. Step 5: Solve for x
    x = 300,144,247.42/15,152.40
  6. Step 6: Final answer
    x = 19,808.36

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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.