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Finding the Fourth Proportional to 91,885.85, 126,798.55 and 53,647.52

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Solution

The fourth proportional to 91,885.85, 126,798.55 and 53,647.52 is: 74,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,885.85 : 126,798.55 = 53,647.52 : x
  2. Step 2: Convert to fraction form
    91,885.85/126,798.55 = 53,647.52/x
  3. Step 3: Cross multiply
    91,885.85x = 126,798.55 × 53,647.52
  4. Step 4: Simplify right side
    91,885.85x = 6,802,427,929.97
  5. Step 5: Solve for x
    x = 6,802,427,929.97/91,885.85
  6. Step 6: Final answer
    x = 74,031.29

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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.