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Finding the Fourth Proportional to 60,286.93, 90,430.40 and 15,917.26

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Solution

The fourth proportional to 60,286.93, 90,430.40 and 15,917.26 is: 23,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,286.93 : 90,430.40 = 15,917.26 : x
  2. Step 2: Convert to fraction form
    60,286.93/90,430.40 = 15,917.26/x
  3. Step 3: Cross multiply
    60,286.93x = 90,430.40 × 15,917.26
  4. Step 4: Simplify right side
    60,286.93x = 1,439,404,127.21
  5. Step 5: Solve for x
    x = 1,439,404,127.21/60,286.93
  6. Step 6: Final answer
    x = 23,875.89

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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.