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Finding the Fourth Proportional to 10,571,861.40, 14,768,719.50 and 10,571,861.40

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Solution

The fourth proportional to 10,571,861.40, 14,768,719.50 and 10,571,861.40 is: 14,768,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571,861.40 : 14,768,719.50 = 10,571,861.40 : x
  2. Step 2: Convert to fraction form
    10,571,861.40/14,768,719.50 = 10,571,861.40/x
  3. Step 3: Cross multiply
    10,571,861.40x = 14,768,719.50 × 10,571,861.40
  4. Step 4: Simplify right side
    10,571,861.40x = 156,132,855,609,477.31
  5. Step 5: Solve for x
    x = 156,132,855,609,477.31/10,571,861.40
  6. Step 6: Final answer
    x = 14,768,719.50

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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.