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Finding the Fourth Proportional to 8,059,713.20, 12,089,569.80 and 7,009,953.20

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Solution

The fourth proportional to 8,059,713.20, 12,089,569.80 and 7,009,953.20 is: 10,514,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,059,713.20 : 12,089,569.80 = 7,009,953.20 : x
  2. Step 2: Convert to fraction form
    8,059,713.20/12,089,569.80 = 7,009,953.20/x
  3. Step 3: Cross multiply
    8,059,713.20x = 12,089,569.80 × 7,009,953.20
  4. Step 4: Simplify right side
    8,059,713.20x = 84,747,318,506,133.38
  5. Step 5: Solve for x
    x = 84,747,318,506,133.38/8,059,713.20
  6. Step 6: Final answer
    x = 10,514,929.80

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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.