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Finding the Fourth Proportional to 93,282.64, 128,628.41 and 63,015.44

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Solution

The fourth proportional to 93,282.64, 128,628.41 and 63,015.44 is: 86,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,282.64 : 128,628.41 = 63,015.44 : x
  2. Step 2: Convert to fraction form
    93,282.64/128,628.41 = 63,015.44/x
  3. Step 3: Cross multiply
    93,282.64x = 128,628.41 × 63,015.44
  4. Step 4: Simplify right side
    93,282.64x = 8,105,574,894.43
  5. Step 5: Solve for x
    x = 8,105,574,894.43/93,282.64
  6. Step 6: Final answer
    x = 86,892.64

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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.