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Finding the Fourth Proportional to 1,300.48, 1,948.88 and 1,146.08

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Solution

The fourth proportional to 1,300.48, 1,948.88 and 1,146.08 is: 1,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300.48 : 1,948.88 = 1,146.08 : x
  2. Step 2: Convert to fraction form
    1,300.48/1,948.88 = 1,146.08/x
  3. Step 3: Cross multiply
    1,300.48x = 1,948.88 × 1,146.08
  4. Step 4: Simplify right side
    1,300.48x = 2,233,572.39
  5. Step 5: Solve for x
    x = 2,233,572.39/1,300.48
  6. Step 6: Final answer
    x = 1,717.50

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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.