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Finding the Fourth Proportional to 34,693.50, 47,877.03 and 18,778.08

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Solution

The fourth proportional to 34,693.50, 47,877.03 and 18,778.08 is: 25,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,693.50 : 47,877.03 = 18,778.08 : x
  2. Step 2: Convert to fraction form
    34,693.50/47,877.03 = 18,778.08/x
  3. Step 3: Cross multiply
    34,693.50x = 47,877.03 × 18,778.08
  4. Step 4: Simplify right side
    34,693.50x = 899,038,699.50
  5. Step 5: Solve for x
    x = 899,038,699.50/34,693.50
  6. Step 6: Final answer
    x = 25,913.75

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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.