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Finding the Fourth Proportional to 9,905,627.60, 13,899,765.10 and 9,905,627.60

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Solution

The fourth proportional to 9,905,627.60, 13,899,765.10 and 9,905,627.60 is: 13,899,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905,627.60 : 13,899,765.10 = 9,905,627.60 : x
  2. Step 2: Convert to fraction form
    9,905,627.60/13,899,765.10 = 9,905,627.60/x
  3. Step 3: Cross multiply
    9,905,627.60x = 13,899,765.10 × 9,905,627.60
  4. Step 4: Simplify right side
    9,905,627.60x = 137,685,896,808,076.75
  5. Step 5: Solve for x
    x = 137,685,896,808,076.75/9,905,627.60
  6. Step 6: Final answer
    x = 13,899,765.10

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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.