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Finding the Fourth Proportional to 83,484.01, 115,360.68 and 60,783.58

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Solution

The fourth proportional to 83,484.01, 115,360.68 and 60,783.58 is: 83,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,484.01 : 115,360.68 = 60,783.58 : x
  2. Step 2: Convert to fraction form
    83,484.01/115,360.68 = 60,783.58/x
  3. Step 3: Cross multiply
    83,484.01x = 115,360.68 × 60,783.58
  4. Step 4: Simplify right side
    83,484.01x = 7,012,035,121.63
  5. Step 5: Solve for x
    x = 7,012,035,121.63/83,484.01
  6. Step 6: Final answer
    x = 83,992.55

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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.