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Finding the Fourth Proportional to 10,365.10, 15,547.65 and 9,241.90

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Solution

The fourth proportional to 10,365.10, 15,547.65 and 9,241.90 is: 13,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.10 : 15,547.65 = 9,241.90 : x
  2. Step 2: Convert to fraction form
    10,365.10/15,547.65 = 9,241.90/x
  3. Step 3: Cross multiply
    10,365.10x = 15,547.65 × 9,241.90
  4. Step 4: Simplify right side
    10,365.10x = 143,689,826.54
  5. Step 5: Solve for x
    x = 143,689,826.54/10,365.10
  6. Step 6: Final answer
    x = 13,862.85

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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.