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Finding the Fourth Proportional to 1,365.84, 1,884.24 and 924.12

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Solution

The fourth proportional to 1,365.84, 1,884.24 and 924.12 is: 1,274.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.84 : 1,884.24 = 924.12 : x
  2. Step 2: Convert to fraction form
    1,365.84/1,884.24 = 924.12/x
  3. Step 3: Cross multiply
    1,365.84x = 1,884.24 × 924.12
  4. Step 4: Simplify right side
    1,365.84x = 1,741,263.87
  5. Step 5: Solve for x
    x = 1,741,263.87/1,365.84
  6. Step 6: Final answer
    x = 1,274.87

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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.