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Finding the Fourth Proportional to 93,447.60, 128,959.56 and 51,009.84

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Solution

The fourth proportional to 93,447.60, 128,959.56 and 51,009.84 is: 70,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,447.60 : 128,959.56 = 51,009.84 : x
  2. Step 2: Convert to fraction form
    93,447.60/128,959.56 = 51,009.84/x
  3. Step 3: Cross multiply
    93,447.60x = 128,959.56 × 51,009.84
  4. Step 4: Simplify right side
    93,447.60x = 6,578,206,522.07
  5. Step 5: Solve for x
    x = 6,578,206,522.07/93,447.60
  6. Step 6: Final answer
    x = 70,394.60

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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.