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Finding the Fourth Proportional to 1,533.71, 2,115.63 and 1,060.88

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Solution

The fourth proportional to 1,533.71, 2,115.63 and 1,060.88 is: 1,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.71 : 2,115.63 = 1,060.88 : x
  2. Step 2: Convert to fraction form
    1,533.71/2,115.63 = 1,060.88/x
  3. Step 3: Cross multiply
    1,533.71x = 2,115.63 × 1,060.88
  4. Step 4: Simplify right side
    1,533.71x = 2,244,429.55
  5. Step 5: Solve for x
    x = 2,244,429.55/1,533.71
  6. Step 6: Final answer
    x = 1,463.40

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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.