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Finding the Fourth Proportional to 60,409.80, 90,603.36 and 25,349.76

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Solution

The fourth proportional to 60,409.80, 90,603.36 and 25,349.76 is: 38,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,409.80 : 90,603.36 = 25,349.76 : x
  2. Step 2: Convert to fraction form
    60,409.80/90,603.36 = 25,349.76/x
  3. Step 3: Cross multiply
    60,409.80x = 90,603.36 × 25,349.76
  4. Step 4: Simplify right side
    60,409.80x = 2,296,773,431.19
  5. Step 5: Solve for x
    x = 2,296,773,431.19/60,409.80
  6. Step 6: Final answer
    x = 38,019.88

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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.