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Finding the Fourth Proportional to 1,125.32, 1,552.06 and 732.47

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Solution

The fourth proportional to 1,125.32, 1,552.06 and 732.47 is: 1,010.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.32 : 1,552.06 = 732.47 : x
  2. Step 2: Convert to fraction form
    1,125.32/1,552.06 = 732.47/x
  3. Step 3: Cross multiply
    1,125.32x = 1,552.06 × 732.47
  4. Step 4: Simplify right side
    1,125.32x = 1,136,837.39
  5. Step 5: Solve for x
    x = 1,136,837.39/1,125.32
  6. Step 6: Final answer
    x = 1,010.23

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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.