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Finding the Fourth Proportional to 28,774.92, 43,163.46 and 9,053.40

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Solution

The fourth proportional to 28,774.92, 43,163.46 and 9,053.40 is: 13,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.92 : 43,163.46 = 9,053.40 : x
  2. Step 2: Convert to fraction form
    28,774.92/43,163.46 = 9,053.40/x
  3. Step 3: Cross multiply
    28,774.92x = 43,163.46 × 9,053.40
  4. Step 4: Simplify right side
    28,774.92x = 390,776,068.76
  5. Step 5: Solve for x
    x = 390,776,068.76/28,774.92
  6. Step 6: Final answer
    x = 13,580.44

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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.