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Finding the Fourth Proportional to 1,886.52, 2,602.53 and 1,140.18

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Solution

The fourth proportional to 1,886.52, 2,602.53 and 1,140.18 is: 1,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.52 : 2,602.53 = 1,140.18 : x
  2. Step 2: Convert to fraction form
    1,886.52/2,602.53 = 1,140.18/x
  3. Step 3: Cross multiply
    1,886.52x = 2,602.53 × 1,140.18
  4. Step 4: Simplify right side
    1,886.52x = 2,967,352.66
  5. Step 5: Solve for x
    x = 2,967,352.66/1,886.52
  6. Step 6: Final answer
    x = 1,572.92

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1.5x scale

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.