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Finding the Fourth Proportional to 15,362.64, 22,911.66 and 15,086.16

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Solution

The fourth proportional to 15,362.64, 22,911.66 and 15,086.16 is: 22,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.64 : 22,911.66 = 15,086.16 : x
  2. Step 2: Convert to fraction form
    15,362.64/22,911.66 = 15,086.16/x
  3. Step 3: Cross multiply
    15,362.64x = 22,911.66 × 15,086.16
  4. Step 4: Simplify right side
    15,362.64x = 345,648,968.63
  5. Step 5: Solve for x
    x = 345,648,968.63/15,362.64
  6. Step 6: Final answer
    x = 22,499.32

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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.