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Finding the Fourth Proportional to 21,681.60, 32,524.58 and 5,886.88

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Solution

The fourth proportional to 21,681.60, 32,524.58 and 5,886.88 is: 8,830.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.60 : 32,524.58 = 5,886.88 : x
  2. Step 2: Convert to fraction form
    21,681.60/32,524.58 = 5,886.88/x
  3. Step 3: Cross multiply
    21,681.60x = 32,524.58 × 5,886.88
  4. Step 4: Simplify right side
    21,681.60x = 191,468,299.51
  5. Step 5: Solve for x
    x = 191,468,299.51/21,681.60
  6. Step 6: Final answer
    x = 8,830.91

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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.