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Finding the Fourth Proportional to 10,953.92, 16,430.88 and 7,061.06

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Solution

The fourth proportional to 10,953.92, 16,430.88 and 7,061.06 is: 10,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.92 : 16,430.88 = 7,061.06 : x
  2. Step 2: Convert to fraction form
    10,953.92/16,430.88 = 7,061.06/x
  3. Step 3: Cross multiply
    10,953.92x = 16,430.88 × 7,061.06
  4. Step 4: Simplify right side
    10,953.92x = 116,019,429.53
  5. Step 5: Solve for x
    x = 116,019,429.53/10,953.92
  6. Step 6: Final answer
    x = 10,591.59

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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.