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Finding the Fourth Proportional to 5,303.12, 7,915.91 and 4,917.65

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Solution

The fourth proportional to 5,303.12, 7,915.91 and 4,917.65 is: 7,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.12 : 7,915.91 = 4,917.65 : x
  2. Step 2: Convert to fraction form
    5,303.12/7,915.91 = 4,917.65/x
  3. Step 3: Cross multiply
    5,303.12x = 7,915.91 × 4,917.65
  4. Step 4: Simplify right side
    5,303.12x = 38,927,610.64
  5. Step 5: Solve for x
    x = 38,927,610.64/5,303.12
  6. Step 6: Final answer
    x = 7,340.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.