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Finding the Fourth Proportional to 23,653.76, 32,642.40 and 13,043.76

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Solution

The fourth proportional to 23,653.76, 32,642.40 and 13,043.76 is: 18,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,653.76 : 32,642.40 = 13,043.76 : x
  2. Step 2: Convert to fraction form
    23,653.76/32,642.40 = 13,043.76/x
  3. Step 3: Cross multiply
    23,653.76x = 32,642.40 × 13,043.76
  4. Step 4: Simplify right side
    23,653.76x = 425,779,631.42
  5. Step 5: Solve for x
    x = 425,779,631.42/23,653.76
  6. Step 6: Final answer
    x = 18,000.51

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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.