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Finding the Fourth Proportional to 15,373.15, 23,069.28 and 13,894.15

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Solution

The fourth proportional to 15,373.15, 23,069.28 and 13,894.15 is: 20,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.15 : 23,069.28 = 13,894.15 : x
  2. Step 2: Convert to fraction form
    15,373.15/23,069.28 = 13,894.15/x
  3. Step 3: Cross multiply
    15,373.15x = 23,069.28 × 13,894.15
  4. Step 4: Simplify right side
    15,373.15x = 320,528,036.71
  5. Step 5: Solve for x
    x = 320,528,036.71/15,373.15
  6. Step 6: Final answer
    x = 20,849.86

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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.