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Finding the Fourth Proportional to 9,365.88, 12,924.76 and 5,116.80

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Solution

The fourth proportional to 9,365.88, 12,924.76 and 5,116.80 is: 7,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.88 : 12,924.76 = 5,116.80 : x
  2. Step 2: Convert to fraction form
    9,365.88/12,924.76 = 5,116.80/x
  3. Step 3: Cross multiply
    9,365.88x = 12,924.76 × 5,116.80
  4. Step 4: Simplify right side
    9,365.88x = 66,133,411.97
  5. Step 5: Solve for x
    x = 66,133,411.97/9,365.88
  6. Step 6: Final answer
    x = 7,061.10

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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.