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Finding the Fourth Proportional to 28,065.90, 42,099.24 and 9,094.08

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Solution

The fourth proportional to 28,065.90, 42,099.24 and 9,094.08 is: 13,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.90 : 42,099.24 = 9,094.08 : x
  2. Step 2: Convert to fraction form
    28,065.90/42,099.24 = 9,094.08/x
  3. Step 3: Cross multiply
    28,065.90x = 42,099.24 × 9,094.08
  4. Step 4: Simplify right side
    28,065.90x = 382,853,856.50
  5. Step 5: Solve for x
    x = 382,853,856.50/28,065.90
  6. Step 6: Final answer
    x = 13,641.25

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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.