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Finding the Fourth Proportional to 25,904.40, 38,864.88 and 9,264.24

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Solution

The fourth proportional to 25,904.40, 38,864.88 and 9,264.24 is: 13,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,904.40 : 38,864.88 = 9,264.24 : x
  2. Step 2: Convert to fraction form
    25,904.40/38,864.88 = 9,264.24/x
  3. Step 3: Cross multiply
    25,904.40x = 38,864.88 × 9,264.24
  4. Step 4: Simplify right side
    25,904.40x = 360,053,575.89
  5. Step 5: Solve for x
    x = 360,053,575.89/25,904.40
  6. Step 6: Final answer
    x = 13,899.32

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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.