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Finding the Fourth Proportional to 5,875.76, 8,791.68 and 5,810.16

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Solution

The fourth proportional to 5,875.76, 8,791.68 and 5,810.16 is: 8,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,875.76 : 8,791.68 = 5,810.16 : x
  2. Step 2: Convert to fraction form
    5,875.76/8,791.68 = 5,810.16/x
  3. Step 3: Cross multiply
    5,875.76x = 8,791.68 × 5,810.16
  4. Step 4: Simplify right side
    5,875.76x = 51,081,067.47
  5. Step 5: Solve for x
    x = 51,081,067.47/5,875.76
  6. Step 6: Final answer
    x = 8,693.53

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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.