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Finding the Fourth Proportional to 3,547.63, 5,320.63 and 1,048.28

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Solution

The fourth proportional to 3,547.63, 5,320.63 and 1,048.28 is: 1,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.63 : 5,320.63 = 1,048.28 : x
  2. Step 2: Convert to fraction form
    3,547.63/5,320.63 = 1,048.28/x
  3. Step 3: Cross multiply
    3,547.63x = 5,320.63 × 1,048.28
  4. Step 4: Simplify right side
    3,547.63x = 5,577,478.17
  5. Step 5: Solve for x
    x = 5,577,478.17/3,547.63
  6. Step 6: Final answer
    x = 1,572.17

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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.