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Finding the Fourth Proportional to 10,649,614.40, 15,974,421.60 and 10,649,614.40

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Solution

The fourth proportional to 10,649,614.40, 15,974,421.60 and 10,649,614.40 is: 15,974,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649,614.40 : 15,974,421.60 = 10,649,614.40 : x
  2. Step 2: Convert to fraction form
    10,649,614.40/15,974,421.60 = 10,649,614.40/x
  3. Step 3: Cross multiply
    10,649,614.40x = 15,974,421.60 × 10,649,614.40
  4. Step 4: Simplify right side
    10,649,614.40x = 170,121,430,303,031.03
  5. Step 5: Solve for x
    x = 170,121,430,303,031.03/10,649,614.40
  6. Step 6: Final answer
    x = 15,974,421.60

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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.