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Finding the Fourth Proportional to 7,587.42, 10,470.48 and 4,230.48

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Solution

The fourth proportional to 7,587.42, 10,470.48 and 4,230.48 is: 5,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.42 : 10,470.48 = 4,230.48 : x
  2. Step 2: Convert to fraction form
    7,587.42/10,470.48 = 4,230.48/x
  3. Step 3: Cross multiply
    7,587.42x = 10,470.48 × 4,230.48
  4. Step 4: Simplify right side
    7,587.42x = 44,295,156.23
  5. Step 5: Solve for x
    x = 44,295,156.23/7,587.42
  6. Step 6: Final answer
    x = 5,837.97

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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.