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Finding the Fourth Proportional to 15,045.81, 22,566.89 and 7,655.57

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Solution

The fourth proportional to 15,045.81, 22,566.89 and 7,655.57 is: 11,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.81 : 22,566.89 = 7,655.57 : x
  2. Step 2: Convert to fraction form
    15,045.81/22,566.89 = 7,655.57/x
  3. Step 3: Cross multiply
    15,045.81x = 22,566.89 × 7,655.57
  4. Step 4: Simplify right side
    15,045.81x = 172,762,406.08
  5. Step 5: Solve for x
    x = 172,762,406.08/15,045.81
  6. Step 6: Final answer
    x = 11,482.43

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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.