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Finding the Fourth Proportional to 28,536.63, 42,805.07 and 10,068.63

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Solution

The fourth proportional to 28,536.63, 42,805.07 and 10,068.63 is: 15,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.63 : 42,805.07 = 10,068.63 : x
  2. Step 2: Convert to fraction form
    28,536.63/42,805.07 = 10,068.63/x
  3. Step 3: Cross multiply
    28,536.63x = 42,805.07 × 10,068.63
  4. Step 4: Simplify right side
    28,536.63x = 430,988,411.95
  5. Step 5: Solve for x
    x = 430,988,411.95/28,536.63
  6. Step 6: Final answer
    x = 15,102.99

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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.