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Finding the Fourth Proportional to 30,955.96, 46,408.02 and 12,483.64

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Solution

The fourth proportional to 30,955.96, 46,408.02 and 12,483.64 is: 18,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.96 : 46,408.02 = 12,483.64 : x
  2. Step 2: Convert to fraction form
    30,955.96/46,408.02 = 12,483.64/x
  3. Step 3: Cross multiply
    30,955.96x = 46,408.02 × 12,483.64
  4. Step 4: Simplify right side
    30,955.96x = 579,341,014.79
  5. Step 5: Solve for x
    x = 579,341,014.79/30,955.96
  6. Step 6: Final answer
    x = 18,715.01

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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.