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Finding the Fourth Proportional to 7,590.80, 11,386.80 and 2,397.12

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Solution

The fourth proportional to 7,590.80, 11,386.80 and 2,397.12 is: 3,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.80 : 11,386.80 = 2,397.12 : x
  2. Step 2: Convert to fraction form
    7,590.80/11,386.80 = 2,397.12/x
  3. Step 3: Cross multiply
    7,590.80x = 11,386.80 × 2,397.12
  4. Step 4: Simplify right side
    7,590.80x = 27,295,526.02
  5. Step 5: Solve for x
    x = 27,295,526.02/7,590.80
  6. Step 6: Final answer
    x = 3,595.87

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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.