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Finding the Fourth Proportional to 13,465.59, 18,580.29 and 7,497.12

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Solution

The fourth proportional to 13,465.59, 18,580.29 and 7,497.12 is: 10,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.59 : 18,580.29 = 7,497.12 : x
  2. Step 2: Convert to fraction form
    13,465.59/18,580.29 = 7,497.12/x
  3. Step 3: Cross multiply
    13,465.59x = 18,580.29 × 7,497.12
  4. Step 4: Simplify right side
    13,465.59x = 139,298,663.76
  5. Step 5: Solve for x
    x = 139,298,663.76/13,465.59
  6. Step 6: Final answer
    x = 10,344.79

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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.