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Finding the Fourth Proportional to 10,363.80, 15,545.70 and 5,698.20

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Solution

The fourth proportional to 10,363.80, 15,545.70 and 5,698.20 is: 8,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.80 : 15,545.70 = 5,698.20 : x
  2. Step 2: Convert to fraction form
    10,363.80/15,545.70 = 5,698.20/x
  3. Step 3: Cross multiply
    10,363.80x = 15,545.70 × 5,698.20
  4. Step 4: Simplify right side
    10,363.80x = 88,582,507.74
  5. Step 5: Solve for x
    x = 88,582,507.74/10,363.80
  6. Step 6: Final answer
    x = 8,547.30

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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.