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Finding the Fourth Proportional to 14,858.32, 20,507.52 and 8,569.84

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Solution

The fourth proportional to 14,858.32, 20,507.52 and 8,569.84 is: 11,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,858.32 : 20,507.52 = 8,569.84 : x
  2. Step 2: Convert to fraction form
    14,858.32/20,507.52 = 8,569.84/x
  3. Step 3: Cross multiply
    14,858.32x = 20,507.52 × 8,569.84
  4. Step 4: Simplify right side
    14,858.32x = 175,746,165.20
  5. Step 5: Solve for x
    x = 175,746,165.20/14,858.32
  6. Step 6: Final answer
    x = 11,828.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.