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Finding the Fourth Proportional to 15,458.66, 21,332.67 and 8,744.03

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Solution

The fourth proportional to 15,458.66, 21,332.67 and 8,744.03 is: 12,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.66 : 21,332.67 = 8,744.03 : x
  2. Step 2: Convert to fraction form
    15,458.66/21,332.67 = 8,744.03/x
  3. Step 3: Cross multiply
    15,458.66x = 21,332.67 × 8,744.03
  4. Step 4: Simplify right side
    15,458.66x = 186,533,506.46
  5. Step 5: Solve for x
    x = 186,533,506.46/15,458.66
  6. Step 6: Final answer
    x = 12,066.60

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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.