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Finding the Fourth Proportional to 10,866,851.64, 16,300,835.64 and 2,779,897.32

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Solution

The fourth proportional to 10,866,851.64, 16,300,835.64 and 2,779,897.32 is: 4,169,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,851.64 : 16,300,835.64 = 2,779,897.32 : x
  2. Step 2: Convert to fraction form
    10,866,851.64/16,300,835.64 = 2,779,897.32/x
  3. Step 3: Cross multiply
    10,866,851.64x = 16,300,835.64 × 2,779,897.32
  4. Step 4: Simplify right side
    10,866,851.64x = 45,314,649,309,396.48
  5. Step 5: Solve for x
    x = 45,314,649,309,396.48/10,866,851.64
  6. Step 6: Final answer
    x = 4,169,988.77

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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.