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Finding the Fourth Proportional to 8,554.79, 12,831.35 and 5,799.17

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Solution

The fourth proportional to 8,554.79, 12,831.35 and 5,799.17 is: 8,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.79 : 12,831.35 = 5,799.17 : x
  2. Step 2: Convert to fraction form
    8,554.79/12,831.35 = 5,799.17/x
  3. Step 3: Cross multiply
    8,554.79x = 12,831.35 × 5,799.17
  4. Step 4: Simplify right side
    8,554.79x = 74,411,086.83
  5. Step 5: Solve for x
    x = 74,411,086.83/8,554.79
  6. Step 6: Final answer
    x = 8,698.18

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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.