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Finding the Fourth Proportional to 12,348.95, 17,041.53 and 7,043.64

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Solution

The fourth proportional to 12,348.95, 17,041.53 and 7,043.64 is: 9,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.95 : 17,041.53 = 7,043.64 : x
  2. Step 2: Convert to fraction form
    12,348.95/17,041.53 = 7,043.64/x
  3. Step 3: Cross multiply
    12,348.95x = 17,041.53 × 7,043.64
  4. Step 4: Simplify right side
    12,348.95x = 120,034,402.37
  5. Step 5: Solve for x
    x = 120,034,402.37/12,348.95
  6. Step 6: Final answer
    x = 9,720.22

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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.