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Finding the Fourth Proportional to 10,199.40, 14,298.60 and 10,199.40

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Solution

The fourth proportional to 10,199.40, 14,298.60 and 10,199.40 is: 14,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.40 : 14,298.60 = 10,199.40 : x
  2. Step 2: Convert to fraction form
    10,199.40/14,298.60 = 10,199.40/x
  3. Step 3: Cross multiply
    10,199.40x = 14,298.60 × 10,199.40
  4. Step 4: Simplify right side
    10,199.40x = 145,837,140.84
  5. Step 5: Solve for x
    x = 145,837,140.84/10,199.40
  6. Step 6: Final answer
    x = 14,298.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.