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Finding the Fourth Proportional to 1,547.82, 2,135.53 and 875.59

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Solution

The fourth proportional to 1,547.82, 2,135.53 and 875.59 is: 1,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.82 : 2,135.53 = 875.59 : x
  2. Step 2: Convert to fraction form
    1,547.82/2,135.53 = 875.59/x
  3. Step 3: Cross multiply
    1,547.82x = 2,135.53 × 875.59
  4. Step 4: Simplify right side
    1,547.82x = 1,869,844.47
  5. Step 5: Solve for x
    x = 1,869,844.47/1,547.82
  6. Step 6: Final answer
    x = 1,208.05

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