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Finding the Fourth Proportional to 13,303.68, 19,955.52 and 7,460.40

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Solution

The fourth proportional to 13,303.68, 19,955.52 and 7,460.40 is: 11,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.68 : 19,955.52 = 7,460.40 : x
  2. Step 2: Convert to fraction form
    13,303.68/19,955.52 = 7,460.40/x
  3. Step 3: Cross multiply
    13,303.68x = 19,955.52 × 7,460.40
  4. Step 4: Simplify right side
    13,303.68x = 148,876,161.41
  5. Step 5: Solve for x
    x = 148,876,161.41/13,303.68
  6. Step 6: Final answer
    x = 11,190.60

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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.