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Finding the Fourth Proportional to 7,915.95, 10,924.20 and 4,559.58

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Solution

The fourth proportional to 7,915.95, 10,924.20 and 4,559.58 is: 6,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.95 : 10,924.20 = 4,559.58 : x
  2. Step 2: Convert to fraction form
    7,915.95/10,924.20 = 4,559.58/x
  3. Step 3: Cross multiply
    7,915.95x = 10,924.20 × 4,559.58
  4. Step 4: Simplify right side
    7,915.95x = 49,809,763.84
  5. Step 5: Solve for x
    x = 49,809,763.84/7,915.95
  6. Step 6: Final answer
    x = 6,292.33

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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.