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Finding the Fourth Proportional to 1,070.52, 1,614.93 and 1,068.36

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Solution

The fourth proportional to 1,070.52, 1,614.93 and 1,068.36 is: 1,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.52 : 1,614.93 = 1,068.36 : x
  2. Step 2: Convert to fraction form
    1,070.52/1,614.93 = 1,068.36/x
  3. Step 3: Cross multiply
    1,070.52x = 1,614.93 × 1,068.36
  4. Step 4: Simplify right side
    1,070.52x = 1,725,326.61
  5. Step 5: Solve for x
    x = 1,725,326.61/1,070.52
  6. Step 6: Final answer
    x = 1,611.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.