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Finding the Fourth Proportional to 93,447.66, 128,957.73 and 51,006.21

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Solution

The fourth proportional to 93,447.66, 128,957.73 and 51,006.21 is: 70,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,447.66 : 128,957.73 = 51,006.21 : x
  2. Step 2: Convert to fraction form
    93,447.66/128,957.73 = 51,006.21/x
  3. Step 3: Cross multiply
    93,447.66x = 128,957.73 × 51,006.21
  4. Step 4: Simplify right side
    93,447.66x = 6,577,645,057.50
  5. Step 5: Solve for x
    x = 6,577,645,057.50/93,447.66
  6. Step 6: Final answer
    x = 70,388.55

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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.