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Finding the Fourth Proportional to 14,920.98, 22,381.48 and 7,106.10

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Solution

The fourth proportional to 14,920.98, 22,381.48 and 7,106.10 is: 10,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.98 : 22,381.48 = 7,106.10 : x
  2. Step 2: Convert to fraction form
    14,920.98/22,381.48 = 7,106.10/x
  3. Step 3: Cross multiply
    14,920.98x = 22,381.48 × 7,106.10
  4. Step 4: Simplify right side
    14,920.98x = 159,045,035.03
  5. Step 5: Solve for x
    x = 159,045,035.03/14,920.98
  6. Step 6: Final answer
    x = 10,659.15

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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.