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Finding the Fourth Proportional to 9,801,061.60, 14,704,216.80 and 8,743,428.40

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Solution

The fourth proportional to 9,801,061.60, 14,704,216.80 and 8,743,428.40 is: 13,117,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,801,061.60 : 14,704,216.80 = 8,743,428.40 : x
  2. Step 2: Convert to fraction form
    9,801,061.60/14,704,216.80 = 8,743,428.40/x
  3. Step 3: Cross multiply
    9,801,061.60x = 14,704,216.80 × 8,743,428.40
  4. Step 4: Simplify right side
    9,801,061.60x = 128,565,266,768,877.12
  5. Step 5: Solve for x
    x = 128,565,266,768,877.12/9,801,061.60
  6. Step 6: Final answer
    x = 13,117,483.80

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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.