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Finding the Fourth Proportional to 2,335.94, 3,503.91 and 692.51

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Solution

The fourth proportional to 2,335.94, 3,503.91 and 692.51 is: 1,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.94 : 3,503.91 = 692.51 : x
  2. Step 2: Convert to fraction form
    2,335.94/3,503.91 = 692.51/x
  3. Step 3: Cross multiply
    2,335.94x = 3,503.91 × 692.51
  4. Step 4: Simplify right side
    2,335.94x = 2,426,492.71
  5. Step 5: Solve for x
    x = 2,426,492.71/2,335.94
  6. Step 6: Final answer
    x = 1,038.77

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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.