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Finding the Fourth Proportional to 1,547.04, 2,135 and 848.48

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Solution

The fourth proportional to 1,547.04, 2,135 and 848.48 is: 1,170.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.04 : 2,135 = 848.48 : x
  2. Step 2: Convert to fraction form
    1,547.04/2,135 = 848.48/x
  3. Step 3: Cross multiply
    1,547.04x = 2,135 × 848.48
  4. Step 4: Simplify right side
    1,547.04x = 1,811,504.80
  5. Step 5: Solve for x
    x = 1,811,504.80/1,547.04
  6. Step 6: Final answer
    x = 1,170.95

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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.