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Finding the Fourth Proportional to 10,554.62, 15,831.80 and 4,398.62

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Solution

The fourth proportional to 10,554.62, 15,831.80 and 4,398.62 is: 6,597.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,554.62 : 15,831.80 = 4,398.62 : x
  2. Step 2: Convert to fraction form
    10,554.62/15,831.80 = 4,398.62/x
  3. Step 3: Cross multiply
    10,554.62x = 15,831.80 × 4,398.62
  4. Step 4: Simplify right side
    10,554.62x = 69,638,072.12
  5. Step 5: Solve for x
    x = 69,638,072.12/10,554.62
  6. Step 6: Final answer
    x = 6,597.88

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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.