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Finding the Fourth Proportional to 1,106.64, 1,526.88 and 751.93

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Solution

The fourth proportional to 1,106.64, 1,526.88 and 751.93 is: 1,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.64 : 1,526.88 = 751.93 : x
  2. Step 2: Convert to fraction form
    1,106.64/1,526.88 = 751.93/x
  3. Step 3: Cross multiply
    1,106.64x = 1,526.88 × 751.93
  4. Step 4: Simplify right side
    1,106.64x = 1,148,108.13
  5. Step 5: Solve for x
    x = 1,148,108.13/1,106.64
  6. Step 6: Final answer
    x = 1,037.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.