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Finding the Fourth Proportional to 1,750.16, 2,415.20 and 964.22

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Solution

The fourth proportional to 1,750.16, 2,415.20 and 964.22 is: 1,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.16 : 2,415.20 = 964.22 : x
  2. Step 2: Convert to fraction form
    1,750.16/2,415.20 = 964.22/x
  3. Step 3: Cross multiply
    1,750.16x = 2,415.20 × 964.22
  4. Step 4: Simplify right side
    1,750.16x = 2,328,784.14
  5. Step 5: Solve for x
    x = 2,328,784.14/1,750.16
  6. Step 6: Final answer
    x = 1,330.61

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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.