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Finding the Fourth Proportional to 17,630.40, 24,332.46 and 10,918.20

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Solution

The fourth proportional to 17,630.40, 24,332.46 and 10,918.20 is: 15,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,630.40 : 24,332.46 = 10,918.20 : x
  2. Step 2: Convert to fraction form
    17,630.40/24,332.46 = 10,918.20/x
  3. Step 3: Cross multiply
    17,630.40x = 24,332.46 × 10,918.20
  4. Step 4: Simplify right side
    17,630.40x = 265,666,664.77
  5. Step 5: Solve for x
    x = 265,666,664.77/17,630.40
  6. Step 6: Final answer
    x = 15,068.67

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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.