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Finding the Fourth Proportional to 27,123.54, 40,683.99 and 7,132.53

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Solution

The fourth proportional to 27,123.54, 40,683.99 and 7,132.53 is: 10,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.54 : 40,683.99 = 7,132.53 : x
  2. Step 2: Convert to fraction form
    27,123.54/40,683.99 = 7,132.53/x
  3. Step 3: Cross multiply
    27,123.54x = 40,683.99 × 7,132.53
  4. Step 4: Simplify right side
    27,123.54x = 290,179,779.19
  5. Step 5: Solve for x
    x = 290,179,779.19/27,123.54
  6. Step 6: Final answer
    x = 10,698.45

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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.