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Finding the Fourth Proportional to 83,683.63, 115,483.26 and 45,957.88

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Solution

The fourth proportional to 83,683.63, 115,483.26 and 45,957.88 is: 63,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,683.63 : 115,483.26 = 45,957.88 : x
  2. Step 2: Convert to fraction form
    83,683.63/115,483.26 = 45,957.88/x
  3. Step 3: Cross multiply
    83,683.63x = 115,483.26 × 45,957.88
  4. Step 4: Simplify right side
    83,683.63x = 5,307,365,227.67
  5. Step 5: Solve for x
    x = 5,307,365,227.67/83,683.63
  6. Step 6: Final answer
    x = 63,421.79

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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.