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Finding the Fourth Proportional to 30,565.65, 45,855.08 and 9,505.28

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Solution

The fourth proportional to 30,565.65, 45,855.08 and 9,505.28 is: 14,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,565.65 : 45,855.08 = 9,505.28 : x
  2. Step 2: Convert to fraction form
    30,565.65/45,855.08 = 9,505.28/x
  3. Step 3: Cross multiply
    30,565.65x = 45,855.08 × 9,505.28
  4. Step 4: Simplify right side
    30,565.65x = 435,865,477.58
  5. Step 5: Solve for x
    x = 435,865,477.58/30,565.65
  6. Step 6: Final answer
    x = 14,259.98

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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.