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Finding the Fourth Proportional to 5,303.13, 7,915.89 and 4,917.63

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Solution

The fourth proportional to 5,303.13, 7,915.89 and 4,917.63 is: 7,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.13 : 7,915.89 = 4,917.63 : x
  2. Step 2: Convert to fraction form
    5,303.13/7,915.89 = 4,917.63/x
  3. Step 3: Cross multiply
    5,303.13x = 7,915.89 × 4,917.63
  4. Step 4: Simplify right side
    5,303.13x = 38,927,418.14
  5. Step 5: Solve for x
    x = 38,927,418.14/5,303.13
  6. Step 6: Final answer
    x = 7,340.46

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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.