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Finding the Fourth Proportional to 60,689.19, 91,033.30 and 18,569.10

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Solution

The fourth proportional to 60,689.19, 91,033.30 and 18,569.10 is: 27,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689.19 : 91,033.30 = 18,569.10 : x
  2. Step 2: Convert to fraction form
    60,689.19/91,033.30 = 18,569.10/x
  3. Step 3: Cross multiply
    60,689.19x = 91,033.30 × 18,569.10
  4. Step 4: Simplify right side
    60,689.19x = 1,690,406,711.17
  5. Step 5: Solve for x
    x = 1,690,406,711.17/60,689.19
  6. Step 6: Final answer
    x = 27,853.50

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1.5x scale

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.