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Finding the Fourth Proportional to 60,242.81, 90,368.60 and 15,869.25

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Solution

The fourth proportional to 60,242.81, 90,368.60 and 15,869.25 is: 23,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,242.81 : 90,368.60 = 15,869.25 : x
  2. Step 2: Convert to fraction form
    60,242.81/90,368.60 = 15,869.25/x
  3. Step 3: Cross multiply
    60,242.81x = 90,368.60 × 15,869.25
  4. Step 4: Simplify right side
    60,242.81x = 1,434,081,826.20
  5. Step 5: Solve for x
    x = 1,434,081,826.20/60,242.81
  6. Step 6: Final answer
    x = 23,805.03

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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.