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Finding the Fourth Proportional to 85,556.30, 128,296.05 and 32,948.30

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Solution

The fourth proportional to 85,556.30, 128,296.05 and 32,948.30 is: 49,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.30 : 128,296.05 = 32,948.30 : x
  2. Step 2: Convert to fraction form
    85,556.30/128,296.05 = 32,948.30/x
  3. Step 3: Cross multiply
    85,556.30x = 128,296.05 × 32,948.30
  4. Step 4: Simplify right side
    85,556.30x = 4,227,136,744.22
  5. Step 5: Solve for x
    x = 4,227,136,744.22/85,556.30
  6. Step 6: Final answer
    x = 49,407.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.