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Finding the Fourth Proportional to 84,628.39, 116,800.05 and 54,014.71

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Solution

The fourth proportional to 84,628.39, 116,800.05 and 54,014.71 is: 74,548.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,628.39 : 116,800.05 = 54,014.71 : x
  2. Step 2: Convert to fraction form
    84,628.39/116,800.05 = 54,014.71/x
  3. Step 3: Cross multiply
    84,628.39x = 116,800.05 × 54,014.71
  4. Step 4: Simplify right side
    84,628.39x = 6,308,920,828.74
  5. Step 5: Solve for x
    x = 6,308,920,828.74/84,628.39
  6. Step 6: Final answer
    x = 74,548.52

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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.