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Finding the Fourth Proportional to 7,915.61, 10,923.64 and 4,559.01

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Solution

The fourth proportional to 7,915.61, 10,923.64 and 4,559.01 is: 6,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.61 : 10,923.64 = 4,559.01 : x
  2. Step 2: Convert to fraction form
    7,915.61/10,923.64 = 4,559.01/x
  3. Step 3: Cross multiply
    7,915.61x = 10,923.64 × 4,559.01
  4. Step 4: Simplify right side
    7,915.61x = 49,800,984.00
  5. Step 5: Solve for x
    x = 49,800,984.00/7,915.61
  6. Step 6: Final answer
    x = 6,291.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.