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Finding the Fourth Proportional to 32,427.40, 48,641.10 and 12,699.40

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Solution

The fourth proportional to 32,427.40, 48,641.10 and 12,699.40 is: 19,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,427.40 : 48,641.10 = 12,699.40 : x
  2. Step 2: Convert to fraction form
    32,427.40/48,641.10 = 12,699.40/x
  3. Step 3: Cross multiply
    32,427.40x = 48,641.10 × 12,699.40
  4. Step 4: Simplify right side
    32,427.40x = 617,712,785.34
  5. Step 5: Solve for x
    x = 617,712,785.34/32,427.40
  6. Step 6: Final answer
    x = 19,049.10

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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.