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Finding the Fourth Proportional to 93,284.15, 128,630.48 and 63,016.94

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Solution

The fourth proportional to 93,284.15, 128,630.48 and 63,016.94 is: 86,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,284.15 : 128,630.48 = 63,016.94 : x
  2. Step 2: Convert to fraction form
    93,284.15/128,630.48 = 63,016.94/x
  3. Step 3: Cross multiply
    93,284.15x = 128,630.48 × 63,016.94
  4. Step 4: Simplify right side
    93,284.15x = 8,105,898,282.09
  5. Step 5: Solve for x
    x = 8,105,898,282.09/93,284.15
  6. Step 6: Final answer
    x = 86,894.71

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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.