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Finding the Fourth Proportional to 74,606.30, 111,909.45 and 25,358.30

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Solution

The fourth proportional to 74,606.30, 111,909.45 and 25,358.30 is: 38,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,606.30 : 111,909.45 = 25,358.30 : x
  2. Step 2: Convert to fraction form
    74,606.30/111,909.45 = 25,358.30/x
  3. Step 3: Cross multiply
    74,606.30x = 111,909.45 × 25,358.30
  4. Step 4: Simplify right side
    74,606.30x = 2,837,833,405.94
  5. Step 5: Solve for x
    x = 2,837,833,405.94/74,606.30
  6. Step 6: Final answer
    x = 38,037.45

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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.