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Finding the Fourth Proportional to 10,274.70, 15,412.05 and 9,713.10

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Solution

The fourth proportional to 10,274.70, 15,412.05 and 9,713.10 is: 14,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.70 : 15,412.05 = 9,713.10 : x
  2. Step 2: Convert to fraction form
    10,274.70/15,412.05 = 9,713.10/x
  3. Step 3: Cross multiply
    10,274.70x = 15,412.05 × 9,713.10
  4. Step 4: Simplify right side
    10,274.70x = 149,698,782.86
  5. Step 5: Solve for x
    x = 149,698,782.86/10,274.70
  6. Step 6: Final answer
    x = 14,569.65

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Double scale
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Similar ratio
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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.