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Finding the Fourth Proportional to 12,362.40, 16,088.40 and 12,362.40

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Solution

The fourth proportional to 12,362.40, 16,088.40 and 12,362.40 is: 16,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.40 : 16,088.40 = 12,362.40 : x
  2. Step 2: Convert to fraction form
    12,362.40/16,088.40 = 12,362.40/x
  3. Step 3: Cross multiply
    12,362.40x = 16,088.40 × 12,362.40
  4. Step 4: Simplify right side
    12,362.40x = 198,891,236.16
  5. Step 5: Solve for x
    x = 198,891,236.16/12,362.40
  6. Step 6: Final answer
    x = 16,088.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.