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Finding the Fourth Proportional to 22,905.64, 34,362.78 and 7,319.08

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Solution

The fourth proportional to 22,905.64, 34,362.78 and 7,319.08 is: 10,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.64 : 34,362.78 = 7,319.08 : x
  2. Step 2: Convert to fraction form
    22,905.64/34,362.78 = 7,319.08/x
  3. Step 3: Cross multiply
    22,905.64x = 34,362.78 × 7,319.08
  4. Step 4: Simplify right side
    22,905.64x = 251,503,935.84
  5. Step 5: Solve for x
    x = 251,503,935.84/22,905.64
  6. Step 6: Final answer
    x = 10,980.00

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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.