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Finding the Fourth Proportional to 10,347,189.10, 15,520,783.65 and 10,347,189.10

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Solution

The fourth proportional to 10,347,189.10, 15,520,783.65 and 10,347,189.10 is: 15,520,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347,189.10 : 15,520,783.65 = 10,347,189.10 : x
  2. Step 2: Convert to fraction form
    10,347,189.10/15,520,783.65 = 10,347,189.10/x
  3. Step 3: Cross multiply
    10,347,189.10x = 15,520,783.65 × 10,347,189.10
  4. Step 4: Simplify right side
    10,347,189.10x = 160,596,483,406,738.22
  5. Step 5: Solve for x
    x = 160,596,483,406,738.22/10,347,189.10
  6. Step 6: Final answer
    x = 15,520,783.65

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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.