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Finding the Fourth Proportional to 21,925.67, 32,888.90 and 7,134.53

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Solution

The fourth proportional to 21,925.67, 32,888.90 and 7,134.53 is: 10,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.67 : 32,888.90 = 7,134.53 : x
  2. Step 2: Convert to fraction form
    21,925.67/32,888.90 = 7,134.53/x
  3. Step 3: Cross multiply
    21,925.67x = 32,888.90 × 7,134.53
  4. Step 4: Simplify right side
    21,925.67x = 234,646,643.60
  5. Step 5: Solve for x
    x = 234,646,643.60/21,925.67
  6. Step 6: Final answer
    x = 10,701.92

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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.