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Finding the Fourth Proportional to 5,339.55, 7,368.51 and 3,101.40

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Solution

The fourth proportional to 5,339.55, 7,368.51 and 3,101.40 is: 4,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.55 : 7,368.51 = 3,101.40 : x
  2. Step 2: Convert to fraction form
    5,339.55/7,368.51 = 3,101.40/x
  3. Step 3: Cross multiply
    5,339.55x = 7,368.51 × 3,101.40
  4. Step 4: Simplify right side
    5,339.55x = 22,852,696.91
  5. Step 5: Solve for x
    x = 22,852,696.91/5,339.55
  6. Step 6: Final answer
    x = 4,279.89

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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.