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Finding the Fourth Proportional to 1,032.89, 1,545.48 and 974.48

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Solution

The fourth proportional to 1,032.89, 1,545.48 and 974.48 is: 1,458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.89 : 1,545.48 = 974.48 : x
  2. Step 2: Convert to fraction form
    1,032.89/1,545.48 = 974.48/x
  3. Step 3: Cross multiply
    1,032.89x = 1,545.48 × 974.48
  4. Step 4: Simplify right side
    1,032.89x = 1,506,031.62
  5. Step 5: Solve for x
    x = 1,506,031.62/1,032.89
  6. Step 6: Final answer
    x = 1,458.08

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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.