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Finding the Fourth Proportional to 28,656.60, 43,000.59 and 11,127.12

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Solution

The fourth proportional to 28,656.60, 43,000.59 and 11,127.12 is: 16,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.60 : 43,000.59 = 11,127.12 : x
  2. Step 2: Convert to fraction form
    28,656.60/43,000.59 = 11,127.12/x
  3. Step 3: Cross multiply
    28,656.60x = 43,000.59 × 11,127.12
  4. Step 4: Simplify right side
    28,656.60x = 478,472,725.00
  5. Step 5: Solve for x
    x = 478,472,725.00/28,656.60
  6. Step 6: Final answer
    x = 16,696.77

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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.