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Finding the Fourth Proportional to 5,300.12, 7,911.42 and 4,914.63

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Solution

The fourth proportional to 5,300.12, 7,911.42 and 4,914.63 is: 7,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.12 : 7,911.42 = 4,914.63 : x
  2. Step 2: Convert to fraction form
    5,300.12/7,911.42 = 4,914.63/x
  3. Step 3: Cross multiply
    5,300.12x = 7,911.42 × 4,914.63
  4. Step 4: Simplify right side
    5,300.12x = 38,881,702.07
  5. Step 5: Solve for x
    x = 38,881,702.07/5,300.12
  6. Step 6: Final answer
    x = 7,336.01

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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.