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Finding the Fourth Proportional to 10,590.76, 14,616.58 and 6,398.76

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Solution

The fourth proportional to 10,590.76, 14,616.58 and 6,398.76 is: 8,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,590.76 : 14,616.58 = 6,398.76 : x
  2. Step 2: Convert to fraction form
    10,590.76/14,616.58 = 6,398.76/x
  3. Step 3: Cross multiply
    10,590.76x = 14,616.58 × 6,398.76
  4. Step 4: Simplify right side
    10,590.76x = 93,527,987.44
  5. Step 5: Solve for x
    x = 93,527,987.44/10,590.76
  6. Step 6: Final answer
    x = 8,831.09

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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.