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Finding the Fourth Proportional to 11,313.81, 15,612.53 and 6,597.99

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Solution

The fourth proportional to 11,313.81, 15,612.53 and 6,597.99 is: 9,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.81 : 15,612.53 = 6,597.99 : x
  2. Step 2: Convert to fraction form
    11,313.81/15,612.53 = 6,597.99/x
  3. Step 3: Cross multiply
    11,313.81x = 15,612.53 × 6,597.99
  4. Step 4: Simplify right side
    11,313.81x = 103,011,283.82
  5. Step 5: Solve for x
    x = 103,011,283.82/11,313.81
  6. Step 6: Final answer
    x = 9,104.92

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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.