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Finding the Fourth Proportional to 10,368.60, 15,552.90 and 9,245.40

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Solution

The fourth proportional to 10,368.60, 15,552.90 and 9,245.40 is: 13,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.60 : 15,552.90 = 9,245.40 : x
  2. Step 2: Convert to fraction form
    10,368.60/15,552.90 = 9,245.40/x
  3. Step 3: Cross multiply
    10,368.60x = 15,552.90 × 9,245.40
  4. Step 4: Simplify right side
    10,368.60x = 143,792,781.66
  5. Step 5: Solve for x
    x = 143,792,781.66/10,368.60
  6. Step 6: Final answer
    x = 13,868.10

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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.