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Finding the Fourth Proportional to 30,444.64, 45,603.68 and 15,608.64

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Solution

The fourth proportional to 30,444.64, 45,603.68 and 15,608.64 is: 23,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,444.64 : 45,603.68 = 15,608.64 : x
  2. Step 2: Convert to fraction form
    30,444.64/45,603.68 = 15,608.64/x
  3. Step 3: Cross multiply
    30,444.64x = 45,603.68 × 15,608.64
  4. Step 4: Simplify right side
    30,444.64x = 711,811,423.80
  5. Step 5: Solve for x
    x = 711,811,423.80/30,444.64
  6. Step 6: Final answer
    x = 23,380.52

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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.