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Finding the Fourth Proportional to 7,915.66, 10,923.59 and 4,559.12

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Solution

The fourth proportional to 7,915.66, 10,923.59 and 4,559.12 is: 6,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.66 : 10,923.59 = 4,559.12 : x
  2. Step 2: Convert to fraction form
    7,915.66/10,923.59 = 4,559.12/x
  3. Step 3: Cross multiply
    7,915.66x = 10,923.59 × 4,559.12
  4. Step 4: Simplify right side
    7,915.66x = 49,801,955.38
  5. Step 5: Solve for x
    x = 49,801,955.38/7,915.66
  6. Step 6: Final answer
    x = 6,291.58

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1.5x scale

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.