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Finding the Fourth Proportional to 28,063.53, 42,095.30 and 8,342.06

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Solution

The fourth proportional to 28,063.53, 42,095.30 and 8,342.06 is: 12,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.53 : 42,095.30 = 8,342.06 : x
  2. Step 2: Convert to fraction form
    28,063.53/42,095.30 = 8,342.06/x
  3. Step 3: Cross multiply
    28,063.53x = 42,095.30 × 8,342.06
  4. Step 4: Simplify right side
    28,063.53x = 351,161,266.13
  5. Step 5: Solve for x
    x = 351,161,266.13/28,063.53
  6. Step 6: Final answer
    x = 12,513.08

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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.