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Finding the Fourth Proportional to 11,070.25, 16,531.99 and 9,728.89

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Solution

The fourth proportional to 11,070.25, 16,531.99 and 9,728.89 is: 14,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.25 : 16,531.99 = 9,728.89 : x
  2. Step 2: Convert to fraction form
    11,070.25/16,531.99 = 9,728.89/x
  3. Step 3: Cross multiply
    11,070.25x = 16,531.99 × 9,728.89
  4. Step 4: Simplify right side
    11,070.25x = 160,837,852.02
  5. Step 5: Solve for x
    x = 160,837,852.02/11,070.25
  6. Step 6: Final answer
    x = 14,528.84

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.