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Finding the Fourth Proportional to 1,167.16, 1,745.57 and 1,038.06

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Solution

The fourth proportional to 1,167.16, 1,745.57 and 1,038.06 is: 1,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.16 : 1,745.57 = 1,038.06 : x
  2. Step 2: Convert to fraction form
    1,167.16/1,745.57 = 1,038.06/x
  3. Step 3: Cross multiply
    1,167.16x = 1,745.57 × 1,038.06
  4. Step 4: Simplify right side
    1,167.16x = 1,812,001.20
  5. Step 5: Solve for x
    x = 1,812,001.20/1,167.16
  6. Step 6: Final answer
    x = 1,552.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.