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Finding the Fourth Proportional to 28,637.50, 42,899.17 and 22,368.17

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Solution

The fourth proportional to 28,637.50, 42,899.17 and 22,368.17 is: 33,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.50 : 42,899.17 = 22,368.17 : x
  2. Step 2: Convert to fraction form
    28,637.50/42,899.17 = 22,368.17/x
  3. Step 3: Cross multiply
    28,637.50x = 42,899.17 × 22,368.17
  4. Step 4: Simplify right side
    28,637.50x = 959,575,927.42
  5. Step 5: Solve for x
    x = 959,575,927.42/28,637.50
  6. Step 6: Final answer
    x = 33,507.67

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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.