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Finding the Fourth Proportional to 38,353.92, 52,925.04 and 21,356.88

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Solution

The fourth proportional to 38,353.92, 52,925.04 and 21,356.88 is: 29,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,353.92 : 52,925.04 = 21,356.88 : x
  2. Step 2: Convert to fraction form
    38,353.92/52,925.04 = 21,356.88/x
  3. Step 3: Cross multiply
    38,353.92x = 52,925.04 × 21,356.88
  4. Step 4: Simplify right side
    38,353.92x = 1,130,313,728.28
  5. Step 5: Solve for x
    x = 1,130,313,728.28/38,353.92
  6. Step 6: Final answer
    x = 29,470.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.